20391718677

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{402037}}^1$

素因数の和:402133

約数の個数: 32

約数和(自身を含む): 31262474880

約数和(自身を除く): 10870756203

約数列:

[1, 3, 11, 29, 33, 53, 87, 159, 319, 583, 957, 1537, 1749, 4611, 16907, 50721, 402037, 1206111, 4422407, 11659073, 13267221, 21307961, 34977219, 63923883, 128249803, 234387571, 384749409, 617930869, 703162713, 1853792607, 6797239559, 20391718677]

約数ペア:

[(1, 20391718677), (3, 6797239559), (11, 1853792607), (29, 703162713), (33, 617930869), (53, 384749409), (87, 234387571), (159, 128249803), (319, 63923883), (583, 34977219), (957, 21307961), (1537, 13267221), (1749, 11659073), (4611, 4422407), (16907, 1206111), (50721, 402037)]