21563580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6781}}^1$

素因数の和:6846

約数の個数: 48

約数和(自身を含む): 61526304

約数和(自身を除く): 39962724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6781, 13562, 20343, 27124, 33905, 40686, 67810, 81372, 101715, 135620, 203430, 359393, 406860, 718786, 1078179, 1437572, 1796965, 2156358, 3593930, 4312716, 5390895, 7187860, 10781790, 21563580]

約数ペア:

[(1, 21563580), (2, 10781790), (3, 7187860), (4, 5390895), (5, 4312716), (6, 3593930), (10, 2156358), (12, 1796965), (15, 1437572), (20, 1078179), (30, 718786), (53, 406860), (60, 359393), (106, 203430), (159, 135620), (212, 101715), (265, 81372), (318, 67810), (530, 40686), (636, 33905), (795, 27124), (1060, 20343), (1590, 13562), (3180, 6781)]