20920658

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 35838720

約数和(自身を除く): 14918062

約数列:

[1, 2, 11, 22, 29, 58, 121, 242, 271, 319, 542, 638, 1331, 2662, 2981, 3509, 5962, 7018, 7859, 15718, 32791, 38599, 65582, 77198, 86449, 172898, 360701, 721402, 950939, 1901878, 10460329, 20920658]

約数ペア:

[(1, 20920658), (2, 10460329), (11, 1901878), (22, 950939), (29, 721402), (58, 360701), (121, 172898), (242, 86449), (271, 77198), (319, 65582), (542, 38599), (638, 32791), (1331, 15718), (2662, 7859), (2981, 7018), (3509, 5962)]