21985652

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2693}}^1$

素因数の和:2867

約数の個数: 24

約数和(自身を含む): 41713896

約数和(自身を除く): 19728244

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 2693, 4082, 5386, 8164, 10772, 35009, 70018, 140036, 422801, 845602, 1691204, 5496413, 10992826, 21985652]

約数ペア:

[(1, 21985652), (2, 10992826), (4, 5496413), (13, 1691204), (26, 845602), (52, 422801), (157, 140036), (314, 70018), (628, 35009), (2041, 10772), (2693, 8164), (4082, 5386)]