21051303

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2659}}^1$

素因数の和:2711

約数の個数: 32

約数和(自身を含む): 35750400

約数和(自身を除く): 14699097

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 203, 273, 377, 609, 1131, 2639, 2659, 7917, 7977, 18613, 34567, 55839, 77111, 103701, 231333, 241969, 539777, 725907, 1002443, 1619331, 3007329, 7017101, 21051303]

約数ペア:

[(1, 21051303), (3, 7017101), (7, 3007329), (13, 1619331), (21, 1002443), (29, 725907), (39, 539777), (87, 241969), (91, 231333), (203, 103701), (273, 77111), (377, 55839), (609, 34567), (1131, 18613), (2639, 7977), (2659, 7917)]