21519865080

素因数分解:

$2^3\times 3^3\times 5^1\times 7^2\times {\mathrm{406649}}^1$

素因数の和:406683

約数の個数: 192

約数和(自身を含む): 83444580000

約数和(自身を除く): 61924714920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 360, 378, 392, 420, 441, 490, 504, 540, 588, 630, 735, 756, 840, 882, 945, 980, 1080, 1176, 1260, 1323, 1470, 1512, 1764, 1890, 1960, 2205, 2520, 2646, 2940, 3528, 3780, 4410, 5292, 5880, 6615, 7560, 8820, 10584, 13230, 17640, 26460, 52920, 406649, 813298, 1219947, 1626596, 2033245, 2439894, 2846543, 3253192, 3659841, 4066490, 4879788, 5693086, 6099735, 7319682, 8132980, 8539629, 9759576, 10979523, 11386172, 12199470, 14232715, 14639364, 16265960, 17079258, 18299205, 19925801, 21959046, 22772344, 24398940, 25618887, 28465430, 29278728, 34158516, 36598410, 39851602, 42698145, 43918092, 48797880, 51237774, 54897615, 56930860, 59777403, 68317032, 73196820, 76856661, 79703204, 85396290, 87836184, 99629005, 102475548, 109795230, 113861720, 119554806, 128094435, 146393640, 153713322, 159406408, 170792580, 179332209, 199258010, 204951096, 219590460, 239109612, 256188870, 298887015, 307426644, 341585160, 358664418, 384283305, 398516020, 439180920, 478219224, 512377740, 537996627, 597774030, 614853288, 717328836, 768566610, 797032040, 896661045, 1024755480, 1075993254, 1195548060, 1434657672, 1537133220, 1793322090, 2151986508, 2391096120, 2689983135, 3074266440, 3586644180, 4303973016, 5379966270, 7173288360, 10759932540, 21519865080]

約数ペア:

[(1, 21519865080), (2, 10759932540), (3, 7173288360), (4, 5379966270), (5, 4303973016), (6, 3586644180), (7, 3074266440), (8, 2689983135), (9, 2391096120), (10, 2151986508), (12, 1793322090), (14, 1537133220), (15, 1434657672), (18, 1195548060), (20, 1075993254), (21, 1024755480), (24, 896661045), (27, 797032040), (28, 768566610), (30, 717328836), (35, 614853288), (36, 597774030), (40, 537996627), (42, 512377740), (45, 478219224), (49, 439180920), (54, 398516020), (56, 384283305), (60, 358664418), (63, 341585160), (70, 307426644), (72, 298887015), (84, 256188870), (90, 239109612), (98, 219590460), (105, 204951096), (108, 199258010), (120, 179332209), (126, 170792580), (135, 159406408), (140, 153713322), (147, 146393640), (168, 128094435), (180, 119554806), (189, 113861720), (196, 109795230), (210, 102475548), (216, 99629005), (245, 87836184), (252, 85396290), (270, 79703204), (280, 76856661), (294, 73196820), (315, 68317032), (360, 59777403), (378, 56930860), (392, 54897615), (420, 51237774), (441, 48797880), (490, 43918092), (504, 42698145), (540, 39851602), (588, 36598410), (630, 34158516), (735, 29278728), (756, 28465430), (840, 25618887), (882, 24398940), (945, 22772344), (980, 21959046), (1080, 19925801), (1176, 18299205), (1260, 17079258), (1323, 16265960), (1470, 14639364), (1512, 14232715), (1764, 12199470), (1890, 11386172), (1960, 10979523), (2205, 9759576), (2520, 8539629), (2646, 8132980), (2940, 7319682), (3528, 6099735), (3780, 5693086), (4410, 4879788), (5292, 4066490), (5880, 3659841), (6615, 3253192), (7560, 2846543), (8820, 2439894), (10584, 2033245), (13230, 1626596), (17640, 1219947), (26460, 813298), (52920, 406649)]