21162128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101741}}^1$

素因数の和:101762

約数の個数: 20

約数和(自身を含む): 44156028

約数和(自身を除く): 22993900

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101741, 203482, 406964, 813928, 1322633, 1627856, 2645266, 5290532, 10581064, 21162128]

約数ペア:

[(1, 21162128), (2, 10581064), (4, 5290532), (8, 2645266), (13, 1627856), (16, 1322633), (26, 813928), (52, 406964), (104, 203482), (208, 101741)]