21295612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7727}}^1$

素因数の和:7797

約数の個数: 24

約数和(自身を含む): 40896576

約数和(自身を除く): 19600964

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7727, 15454, 30908, 100451, 200902, 401804, 409531, 819062, 1638124, 5323903, 10647806, 21295612]

約数ペア:

[(1, 21295612), (2, 10647806), (4, 5323903), (13, 1638124), (26, 819062), (52, 409531), (53, 401804), (106, 200902), (212, 100451), (689, 30908), (1378, 15454), (2756, 7727)]