21160404

素因数分解:

$2^2\times 3^2\times {\mathrm{587789}}^1$

素因数の和:587799

約数の個数: 18

約数和(自身を含む): 53488890

約数和(自身を除く): 32328486

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 587789, 1175578, 1763367, 2351156, 3526734, 5290101, 7053468, 10580202, 21160404]

約数ペア:

[(1, 21160404), (2, 10580202), (3, 7053468), (4, 5290101), (6, 3526734), (9, 2351156), (12, 1763367), (18, 1175578), (36, 587789)]