21023810

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29611}}^1$

素因数の和:29689

約数の個数: 16

約数和(自身を含む): 38377152

約数和(自身を除く): 17353342

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29611, 59222, 148055, 296110, 2102381, 4204762, 10511905, 21023810]

約数ペア:

[(1, 21023810), (2, 10511905), (5, 4204762), (10, 2102381), (71, 296110), (142, 148055), (355, 59222), (710, 29611)]