21714840

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{1231}}^1$

素因数の和:1262

約数の個数: 144

約数和(自身を含む): 82162080

約数和(自身を除く): 60447240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1231, 1260, 1470, 1764, 1960, 2205, 2462, 2520, 2940, 3528, 3693, 4410, 4924, 5880, 6155, 7386, 8617, 8820, 9848, 11079, 12310, 14772, 17234, 17640, 18465, 22158, 24620, 25851, 29544, 34468, 36930, 43085, 44316, 49240, 51702, 55395, 60319, 68936, 73860, 77553, 86170, 88632, 103404, 110790, 120638, 129255, 147720, 155106, 172340, 180957, 206808, 221580, 241276, 258510, 301595, 310212, 344680, 361914, 387765, 443160, 482552, 517020, 542871, 603190, 620424, 723828, 775530, 904785, 1034040, 1085742, 1206380, 1447656, 1551060, 1809570, 2171484, 2412760, 2714355, 3102120, 3619140, 4342968, 5428710, 7238280, 10857420, 21714840]

約数ペア:

[(1, 21714840), (2, 10857420), (3, 7238280), (4, 5428710), (5, 4342968), (6, 3619140), (7, 3102120), (8, 2714355), (9, 2412760), (10, 2171484), (12, 1809570), (14, 1551060), (15, 1447656), (18, 1206380), (20, 1085742), (21, 1034040), (24, 904785), (28, 775530), (30, 723828), (35, 620424), (36, 603190), (40, 542871), (42, 517020), (45, 482552), (49, 443160), (56, 387765), (60, 361914), (63, 344680), (70, 310212), (72, 301595), (84, 258510), (90, 241276), (98, 221580), (105, 206808), (120, 180957), (126, 172340), (140, 155106), (147, 147720), (168, 129255), (180, 120638), (196, 110790), (210, 103404), (245, 88632), (252, 86170), (280, 77553), (294, 73860), (315, 68936), (360, 60319), (392, 55395), (420, 51702), (441, 49240), (490, 44316), (504, 43085), (588, 36930), (630, 34468), (735, 29544), (840, 25851), (882, 24620), (980, 22158), (1176, 18465), (1231, 17640), (1260, 17234), (1470, 14772), (1764, 12310), (1960, 11079), (2205, 9848), (2462, 8820), (2520, 8617), (2940, 7386), (3528, 6155), (3693, 5880), (4410, 4924)]