21904712

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{40867}}^1$

素因数の和:40940

約数の個数: 16

約数和(自身を含む): 41685360

約数和(自身を除く): 19780648

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 40867, 81734, 163468, 326936, 2738089, 5476178, 10952356, 21904712]

約数ペア:

[(1, 21904712), (2, 10952356), (4, 5476178), (8, 2738089), (67, 326936), (134, 163468), (268, 81734), (536, 40867)]