21188123404

素因数分解:

$2^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{3166187}}^1$

素因数の和:3166437

約数の個数: 24

約数和(自身を含む): 42553566720

約数和(自身を除く): 21365443316

約数列:

[1, 2, 4, 7, 14, 28, 239, 478, 956, 1673, 3346, 6692, 3166187, 6332374, 12664748, 22163309, 44326618, 88653236, 756718693, 1513437386, 3026874772, 5297030851, 10594061702, 21188123404]

約数ペア:

[(1, 21188123404), (2, 10594061702), (4, 5297030851), (7, 3026874772), (14, 1513437386), (28, 756718693), (239, 88653236), (478, 44326618), (956, 22163309), (1673, 12664748), (3346, 6332374), (6692, 3166187)]