21248360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 57312360

約数和(自身を除く): 36064000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 49, 56, 70, 74, 98, 140, 148, 185, 196, 245, 259, 280, 293, 296, 370, 392, 490, 518, 586, 740, 980, 1036, 1172, 1295, 1465, 1480, 1813, 1960, 2051, 2072, 2344, 2590, 2930, 3626, 4102, 5180, 5860, 7252, 8204, 9065, 10255, 10360, 10841, 11720, 14357, 14504, 16408, 18130, 20510, 21682, 28714, 36260, 41020, 43364, 54205, 57428, 71785, 72520, 75887, 82040, 86728, 108410, 114856, 143570, 151774, 216820, 287140, 303548, 379435, 433640, 531209, 574280, 607096, 758870, 1062418, 1517740, 2124836, 2656045, 3035480, 4249672, 5312090, 10624180, 21248360]

約数ペア:

[(1, 21248360), (2, 10624180), (4, 5312090), (5, 4249672), (7, 3035480), (8, 2656045), (10, 2124836), (14, 1517740), (20, 1062418), (28, 758870), (35, 607096), (37, 574280), (40, 531209), (49, 433640), (56, 379435), (70, 303548), (74, 287140), (98, 216820), (140, 151774), (148, 143570), (185, 114856), (196, 108410), (245, 86728), (259, 82040), (280, 75887), (293, 72520), (296, 71785), (370, 57428), (392, 54205), (490, 43364), (518, 41020), (586, 36260), (740, 28714), (980, 21682), (1036, 20510), (1172, 18130), (1295, 16408), (1465, 14504), (1480, 14357), (1813, 11720), (1960, 10841), (2051, 10360), (2072, 10255), (2344, 9065), (2590, 8204), (2930, 7252), (3626, 5860), (4102, 5180)]