21083798

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:799

約数の個数: 16

約数和(自身を含む): 32130000

約数和(自身を除く): 11046202

約数列:

[1, 2, 139, 149, 278, 298, 509, 1018, 20711, 41422, 70751, 75841, 141502, 151682, 10541899, 21083798]

約数ペア:

[(1, 21083798), (2, 10541899), (139, 151682), (149, 141502), (278, 75841), (298, 70751), (509, 41422), (1018, 20711)]