1640351691

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{25849}}^1$

素因数の和:26507

約数の個数: 24

約数和(自身を含む): 2588929200

約数和(自身を除く): 948577509

約数列:

[1, 3, 9, 11, 33, 99, 641, 1923, 5769, 7051, 21153, 25849, 63459, 77547, 232641, 284339, 853017, 2559051, 16569209, 49707627, 149122881, 182261299, 546783897, 1640351691]

約数ペア:

[(1, 1640351691), (3, 546783897), (9, 182261299), (11, 149122881), (33, 49707627), (99, 16569209), (641, 2559051), (1923, 853017), (5769, 284339), (7051, 232641), (21153, 77547), (25849, 63459)]