20121479157

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{820247}}^1$

素因数の和:820317

約数の個数: 32

約数和(自身を含む): 31418779392

約数和(自身を除く): 11297300235

約数列:

[1, 3, 13, 17, 37, 39, 51, 111, 221, 481, 629, 663, 1443, 1887, 8177, 24531, 820247, 2460741, 10663211, 13944199, 30349139, 31989633, 41832597, 91047417, 181274587, 394538807, 515935363, 543823761, 1183616421, 1547806089, 6707159719, 20121479157]

約数ペア:

[(1, 20121479157), (3, 6707159719), (13, 1547806089), (17, 1183616421), (37, 543823761), (39, 515935363), (51, 394538807), (111, 181274587), (221, 91047417), (481, 41832597), (629, 31989633), (663, 30349139), (1443, 13944199), (1887, 10663211), (8177, 2460741), (24531, 820247)]