21328604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{1279}}^1$

素因数の和:1673

約数の個数: 24

約数和(自身を含む): 40857600

約数和(自身を除く): 19528996

約数列:

[1, 2, 4, 11, 22, 44, 379, 758, 1279, 1516, 2558, 4169, 5116, 8338, 14069, 16676, 28138, 56276, 484741, 969482, 1938964, 5332151, 10664302, 21328604]

約数ペア:

[(1, 21328604), (2, 10664302), (4, 5332151), (11, 1938964), (22, 969482), (44, 484741), (379, 56276), (758, 28138), (1279, 16676), (1516, 14069), (2558, 8338), (4169, 5116)]