201780621

素因数分解:

$3^2\times 7^1\times {\mathrm{757}}^1\times {\mathrm{4231}}^1$

素因数の和:5001

約数の個数: 24

約数和(自身を含む): 333617024

約数和(自身を除く): 131836403

約数列:

[1, 3, 7, 9, 21, 63, 757, 2271, 4231, 5299, 6813, 12693, 15897, 29617, 38079, 47691, 88851, 266553, 3202867, 9608601, 22420069, 28825803, 67260207, 201780621]

約数ペア:

[(1, 201780621), (3, 67260207), (7, 28825803), (9, 22420069), (21, 9608601), (63, 3202867), (757, 266553), (2271, 88851), (4231, 47691), (5299, 38079), (6813, 29617), (12693, 15897)]