21007165

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{6299}}^1$

素因数の和:6356

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 6208835

約数列:

[1, 5, 23, 29, 115, 145, 667, 3335, 6299, 31495, 144877, 182671, 724385, 913355, 4201433, 21007165]

約数ペア:

[(1, 21007165), (5, 4201433), (23, 913355), (29, 724385), (115, 182671), (145, 144877), (667, 31495), (3335, 6299)]