20176491867

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{552493}}^1$

素因数の和:552587

約数の個数: 32

約数和(自身を含む): 32247969792

約数和(自身を除く): 12071477925

約数列:

[1, 3, 7, 21, 37, 47, 111, 141, 259, 329, 777, 987, 1739, 5217, 12173, 36519, 552493, 1657479, 3867451, 11602353, 20442241, 25967171, 61326723, 77901513, 143095687, 181770197, 429287061, 545310591, 960785327, 2882355981, 6725497289, 20176491867]

約数ペア:

[(1, 20176491867), (3, 6725497289), (7, 2882355981), (21, 960785327), (37, 545310591), (47, 429287061), (111, 181770197), (141, 143095687), (259, 77901513), (329, 61326723), (777, 25967171), (987, 20442241), (1739, 11602353), (5217, 3867451), (12173, 1657479), (36519, 552493)]