678215668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{607}}^1\times {\mathrm{21487}}^1$

素因数の和:22111

約数の個数: 24

約数和(自身を含む): 1280340992

約数和(自身を除く): 602125324

約数列:

[1, 2, 4, 13, 26, 52, 607, 1214, 2428, 7891, 15782, 21487, 31564, 42974, 85948, 279331, 558662, 1117324, 13042609, 26085218, 52170436, 169553917, 339107834, 678215668]

約数ペア:

[(1, 678215668), (2, 339107834), (4, 169553917), (13, 52170436), (26, 26085218), (52, 13042609), (607, 1117324), (1214, 558662), (2428, 279331), (7891, 85948), (15782, 42974), (21487, 31564)]