20513236

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6277}}^1$

素因数の和:6343

約数の個数: 24

約数和(自身を含む): 38672480

約数和(自身を除く): 18159244

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6277, 12554, 25108, 119263, 238526, 269911, 477052, 539822, 1079644, 5128309, 10256618, 20513236]

約数ペア:

[(1, 20513236), (2, 10256618), (4, 5128309), (19, 1079644), (38, 539822), (43, 477052), (76, 269911), (86, 238526), (172, 119263), (817, 25108), (1634, 12554), (3268, 6277)]