20979818

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{15727}}^1$

素因数の和:15781

約数の個数: 16

約数和(自身を含む): 33972480

約数和(自身を除く): 12992662

約数列:

[1, 2, 23, 29, 46, 58, 667, 1334, 15727, 31454, 361721, 456083, 723442, 912166, 10489909, 20979818]

約数ペア:

[(1, 20979818), (2, 10489909), (23, 912166), (29, 723442), (46, 456083), (58, 361721), (667, 31454), (1334, 15727)]