866619

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{823}}^1$

素因数の和:848

約数の個数: 20

約数和(自身を含む): 1395856

約数和(自身を除く): 529237

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 823, 1053, 2469, 7407, 10699, 22221, 32097, 66663, 96291, 288873, 866619]

約数ペア:

[(1, 866619), (3, 288873), (9, 96291), (13, 66663), (27, 32097), (39, 22221), (81, 10699), (117, 7407), (351, 2469), (823, 1053)]