21331401

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{78137}}^1$

素因数の和:78160

約数の個数: 16

約数和(自身を含む): 35005824

約数和(自身を除く): 13674423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 78137, 234411, 546959, 1015781, 1640877, 3047343, 7110467, 21331401]

約数ペア:

[(1, 21331401), (3, 7110467), (7, 3047343), (13, 1640877), (21, 1015781), (39, 546959), (91, 234411), (273, 78137)]