21402507

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59951}}^1$

素因数の和:59978

約数の個数: 16

約数和(自身を含む): 34532352

約数和(自身を除く): 13129845

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59951, 179853, 419657, 1019167, 1258971, 3057501, 7134169, 21402507]

約数ペア:

[(1, 21402507), (3, 7134169), (7, 3057501), (17, 1258971), (21, 1019167), (51, 419657), (119, 179853), (357, 59951)]