21248590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6661}}^1$

素因数の和:6708

約数の個数: 32

約数和(自身を含む): 43169760

約数和(自身を除く): 21921170

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 6661, 13322, 33305, 66610, 73271, 146542, 193169, 366355, 386338, 732710, 965845, 1931690, 2124859, 4249718, 10624295, 21248590]

約数ペア:

[(1, 21248590), (2, 10624295), (5, 4249718), (10, 2124859), (11, 1931690), (22, 965845), (29, 732710), (55, 386338), (58, 366355), (110, 193169), (145, 146542), (290, 73271), (319, 66610), (638, 33305), (1595, 13322), (3190, 6661)]