20221985

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 9637855

約数列:

[1, 5, 7, 19, 35, 47, 95, 133, 235, 329, 647, 665, 893, 1645, 3235, 4465, 4529, 6251, 12293, 22645, 30409, 31255, 61465, 86051, 152045, 212863, 430255, 577771, 1064315, 2888855, 4044397, 20221985]

約数ペア:

[(1, 20221985), (5, 4044397), (7, 2888855), (19, 1064315), (35, 577771), (47, 430255), (95, 212863), (133, 152045), (235, 86051), (329, 61465), (647, 31255), (665, 30409), (893, 22645), (1645, 12293), (3235, 6251), (4465, 4529)]