21381298

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1\times {\mathrm{853}}^1$

素因数の和:1089

約数の個数: 16

約数和(自身を含む): 32711616

約数和(自身を除く): 11330318

約数列:

[1, 2, 83, 151, 166, 302, 853, 1706, 12533, 25066, 70799, 128803, 141598, 257606, 10690649, 21381298]

約数ペア:

[(1, 21381298), (2, 10690649), (83, 257606), (151, 141598), (166, 128803), (302, 70799), (853, 25066), (1706, 12533)]