21104397717

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{1321}}^1\times {\mathrm{31511}}^1$

素因数の和:32861

約数の個数: 24

約数和(自身を含む): 30494288448

約数和(自身を除く): 9389890731

約数列:

[1, 3, 13, 39, 169, 507, 1321, 3963, 17173, 31511, 51519, 94533, 223249, 409643, 669747, 1228929, 5325359, 15976077, 41626031, 124878093, 541138403, 1623415209, 7034799239, 21104397717]

約数ペア:

[(1, 21104397717), (3, 7034799239), (13, 1623415209), (39, 541138403), (169, 124878093), (507, 41626031), (1321, 15976077), (3963, 5325359), (17173, 1228929), (31511, 669747), (51519, 409643), (94533, 223249)]