21046263

素因数分解:

$3^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1549}}^1$

素因数の和:2206

約数の個数: 16

約数和(自身を含む): 32140800

約数和(自身を除く): 11094537

約数列:

[1, 3, 7, 21, 647, 1549, 1941, 4529, 4647, 10843, 13587, 32529, 1002203, 3006609, 7015421, 21046263]

約数ペア:

[(1, 21046263), (3, 7015421), (7, 3006609), (21, 1002203), (647, 32529), (1549, 13587), (1941, 10843), (4529, 4647)]