21955320

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{701}}^1$

素因数の和:750

約数の個数: 128

約数和(自身を含む): 75816000

約数和(自身を除く): 53860680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 72, 87, 90, 108, 116, 120, 135, 145, 174, 180, 216, 232, 261, 270, 290, 348, 360, 435, 522, 540, 580, 696, 701, 783, 870, 1044, 1080, 1160, 1305, 1402, 1566, 1740, 2088, 2103, 2610, 2804, 3132, 3480, 3505, 3915, 4206, 5220, 5608, 6264, 6309, 7010, 7830, 8412, 10440, 10515, 12618, 14020, 15660, 16824, 18927, 20329, 21030, 25236, 28040, 31320, 31545, 37854, 40658, 42060, 50472, 60987, 63090, 75708, 81316, 84120, 94635, 101645, 121974, 126180, 151416, 162632, 182961, 189270, 203290, 243948, 252360, 304935, 365922, 378540, 406580, 487896, 548883, 609870, 731844, 757080, 813160, 914805, 1097766, 1219740, 1463688, 1829610, 2195532, 2439480, 2744415, 3659220, 4391064, 5488830, 7318440, 10977660, 21955320]

約数ペア:

[(1, 21955320), (2, 10977660), (3, 7318440), (4, 5488830), (5, 4391064), (6, 3659220), (8, 2744415), (9, 2439480), (10, 2195532), (12, 1829610), (15, 1463688), (18, 1219740), (20, 1097766), (24, 914805), (27, 813160), (29, 757080), (30, 731844), (36, 609870), (40, 548883), (45, 487896), (54, 406580), (58, 378540), (60, 365922), (72, 304935), (87, 252360), (90, 243948), (108, 203290), (116, 189270), (120, 182961), (135, 162632), (145, 151416), (174, 126180), (180, 121974), (216, 101645), (232, 94635), (261, 84120), (270, 81316), (290, 75708), (348, 63090), (360, 60987), (435, 50472), (522, 42060), (540, 40658), (580, 37854), (696, 31545), (701, 31320), (783, 28040), (870, 25236), (1044, 21030), (1080, 20329), (1160, 18927), (1305, 16824), (1402, 15660), (1566, 14020), (1740, 12618), (2088, 10515), (2103, 10440), (2610, 8412), (2804, 7830), (3132, 7010), (3480, 6309), (3505, 6264), (3915, 5608), (4206, 5220)]