21654120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5821}}^1$

素因数の和:5866

約数の個数: 64

約数和(自身を含む): 67069440

約数和(自身を除く): 45415320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5821, 11642, 17463, 23284, 29105, 34926, 46568, 58210, 69852, 87315, 116420, 139704, 174630, 180451, 232840, 349260, 360902, 541353, 698520, 721804, 902255, 1082706, 1443608, 1804510, 2165412, 2706765, 3609020, 4330824, 5413530, 7218040, 10827060, 21654120]

約数ペア:

[(1, 21654120), (2, 10827060), (3, 7218040), (4, 5413530), (5, 4330824), (6, 3609020), (8, 2706765), (10, 2165412), (12, 1804510), (15, 1443608), (20, 1082706), (24, 902255), (30, 721804), (31, 698520), (40, 541353), (60, 360902), (62, 349260), (93, 232840), (120, 180451), (124, 174630), (155, 139704), (186, 116420), (248, 87315), (310, 69852), (372, 58210), (465, 46568), (620, 34926), (744, 29105), (930, 23284), (1240, 17463), (1860, 11642), (3720, 5821)]