21516456

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68963}}^1$

素因数の和:68985

約数の個数: 32

約数和(自身を含む): 57929760

約数和(自身を除く): 36413304

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68963, 137926, 206889, 275852, 413778, 551704, 827556, 896519, 1655112, 1793038, 2689557, 3586076, 5379114, 7172152, 10758228, 21516456]

約数ペア:

[(1, 21516456), (2, 10758228), (3, 7172152), (4, 5379114), (6, 3586076), (8, 2689557), (12, 1793038), (13, 1655112), (24, 896519), (26, 827556), (39, 551704), (52, 413778), (78, 275852), (104, 206889), (156, 137926), (312, 68963)]