21080222

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1\times {\mathrm{557}}^1$

素因数の和:835

約数の個数: 16

約数和(自身を含む): 32140800

約数和(自身を除く): 11060578

約数列:

[1, 2, 127, 149, 254, 298, 557, 1114, 18923, 37846, 70739, 82993, 141478, 165986, 10540111, 21080222]

約数ペア:

[(1, 21080222), (2, 10540111), (127, 165986), (149, 141478), (254, 82993), (298, 70739), (557, 37846), (1114, 18923)]