201981591

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{40583}}^1$

素因数の和:40675

約数の個数: 24

約数和(自身を含む): 337658880

約数和(自身を除く): 135677289

約数列:

[1, 3, 7, 9, 21, 63, 79, 237, 553, 711, 1659, 4977, 40583, 121749, 284081, 365247, 852243, 2556729, 3206057, 9618171, 22442399, 28854513, 67327197, 201981591]

約数ペア:

[(1, 201981591), (3, 67327197), (7, 28854513), (9, 22442399), (21, 9618171), (63, 3206057), (79, 2556729), (237, 852243), (553, 365247), (711, 284081), (1659, 121749), (4977, 40583)]