21032216

素因数分解:

$2^3\times {\mathrm{127}}^2\times {\mathrm{163}}^1$

素因数の和:423

約数の個数: 24

約数和(自身を含む): 39992220

約数和(自身を除く): 18960004

約数列:

[1, 2, 4, 8, 127, 163, 254, 326, 508, 652, 1016, 1304, 16129, 20701, 32258, 41402, 64516, 82804, 129032, 165608, 2629027, 5258054, 10516108, 21032216]

約数ペア:

[(1, 21032216), (2, 10516108), (4, 5258054), (8, 2629027), (127, 165608), (163, 129032), (254, 82804), (326, 64516), (508, 41402), (652, 32258), (1016, 20701), (1304, 16129)]