19704867

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 32739840

約数和(自身を除く): 13034973

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 267, 273, 623, 811, 1157, 1869, 2433, 3471, 5677, 8099, 10543, 17031, 24297, 31629, 72179, 73801, 216537, 221403, 505253, 938327, 1515759, 2814981, 6568289, 19704867]

約数ペア:

[(1, 19704867), (3, 6568289), (7, 2814981), (13, 1515759), (21, 938327), (39, 505253), (89, 221403), (91, 216537), (267, 73801), (273, 72179), (623, 31629), (811, 24297), (1157, 17031), (1869, 10543), (2433, 8099), (3471, 5677)]