21012501

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{10501}}^1$

素因数の和:10556

約数の個数: 16

約数和(自身を含む): 30245760

約数和(自身を除く): 9233259

約数列:

[1, 3, 23, 29, 69, 87, 667, 2001, 10501, 31503, 241523, 304529, 724569, 913587, 7004167, 21012501]

約数ペア:

[(1, 21012501), (3, 7004167), (23, 913587), (29, 724569), (69, 304529), (87, 241523), (667, 31503), (2001, 10501)]