21307587

素因数分解:

$3^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{1373}}^1$

素因数の和:2122

約数の個数: 16

約数和(自身を含む): 32536320

約数和(自身を除く): 11228733

約数列:

[1, 3, 7, 21, 739, 1373, 2217, 4119, 5173, 9611, 15519, 28833, 1014647, 3043941, 7102529, 21307587]

約数ペア:

[(1, 21307587), (3, 7102529), (7, 3043941), (21, 1014647), (739, 28833), (1373, 15519), (2217, 9611), (4119, 5173)]