207978183

素因数分解:

$3^2\times 7^1\times {\mathrm{821}}^1\times {\mathrm{4021}}^1$

素因数の和:4855

約数の個数: 24

約数和(自身を含む): 343832736

約数和(自身を除く): 135854553

約数列:

[1, 3, 7, 9, 21, 63, 821, 2463, 4021, 5747, 7389, 12063, 17241, 28147, 36189, 51723, 84441, 253323, 3301241, 9903723, 23108687, 29711169, 69326061, 207978183]

約数ペア:

[(1, 207978183), (3, 69326061), (7, 29711169), (9, 23108687), (21, 9903723), (63, 3301241), (821, 253323), (2463, 84441), (4021, 51723), (5747, 36189), (7389, 28147), (12063, 17241)]