21572060

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{433}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 47246976

約数和(自身を除く): 25674916

約数列:

[1, 2, 4, 5, 10, 20, 47, 53, 94, 106, 188, 212, 235, 265, 433, 470, 530, 866, 940, 1060, 1732, 2165, 2491, 4330, 4982, 8660, 9964, 12455, 20351, 22949, 24910, 40702, 45898, 49820, 81404, 91796, 101755, 114745, 203510, 229490, 407020, 458980, 1078603, 2157206, 4314412, 5393015, 10786030, 21572060]

約数ペア:

[(1, 21572060), (2, 10786030), (4, 5393015), (5, 4314412), (10, 2157206), (20, 1078603), (47, 458980), (53, 407020), (94, 229490), (106, 203510), (188, 114745), (212, 101755), (235, 91796), (265, 81404), (433, 49820), (470, 45898), (530, 40702), (866, 24910), (940, 22949), (1060, 20351), (1732, 12455), (2165, 9964), (2491, 8660), (4330, 4982)]