20505422

素因数分解:

$2^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{2351}}^1$

素因数の和:2456

約数の個数: 24

約数和(自身を含む): 36197280

約数和(自身を除く): 15691858

約数列:

[1, 2, 7, 14, 49, 89, 98, 178, 623, 1246, 2351, 4361, 4702, 8722, 16457, 32914, 115199, 209239, 230398, 418478, 1464673, 2929346, 10252711, 20505422]

約数ペア:

[(1, 20505422), (2, 10252711), (7, 2929346), (14, 1464673), (49, 418478), (89, 230398), (98, 209239), (178, 115199), (623, 32914), (1246, 16457), (2351, 8722), (4361, 4702)]