21385866

素因数分解:

$2^1\times 3^1\times {\mathrm{1021}}^1\times {\mathrm{3491}}^1$

素因数の和:4517

約数の個数: 16

約数和(自身を含む): 42825888

約数和(自身を除く): 21440022

約数列:

[1, 2, 3, 6, 1021, 2042, 3063, 3491, 6126, 6982, 10473, 20946, 3564311, 7128622, 10692933, 21385866]

約数ペア:

[(1, 21385866), (2, 10692933), (3, 7128622), (6, 3564311), (1021, 20946), (2042, 10473), (3063, 6982), (3491, 6126)]