21030978

素因数分解:

$2^1\times 3^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1$

素因数の和:462

約数の個数: 32

約数和(自身を含む): 42900480

約数和(自身を除く): 21869502

約数列:

[1, 2, 3, 6, 139, 151, 167, 278, 302, 334, 417, 453, 501, 834, 906, 1002, 20989, 23213, 25217, 41978, 46426, 50434, 62967, 69639, 75651, 125934, 139278, 151302, 3505163, 7010326, 10515489, 21030978]

約数ペア:

[(1, 21030978), (2, 10515489), (3, 7010326), (6, 3505163), (139, 151302), (151, 139278), (167, 125934), (278, 75651), (302, 69639), (334, 62967), (417, 50434), (453, 46426), (501, 41978), (834, 25217), (906, 23213), (1002, 20989)]