21681558

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{22727}}^1$

素因数の和:22788

約数の個数: 24

約数和(自身を含む): 47865168

約数和(自身を除く): 26183610

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 159, 318, 477, 954, 22727, 45454, 68181, 136362, 204543, 409086, 1204531, 2409062, 3613593, 7227186, 10840779, 21681558]

約数ペア:

[(1, 21681558), (2, 10840779), (3, 7227186), (6, 3613593), (9, 2409062), (18, 1204531), (53, 409086), (106, 204543), (159, 136362), (318, 68181), (477, 45454), (954, 22727)]