218212947

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{65707}}^1$

素因数の和:65760

約数の個数: 20

約数和(自身を含む): 333928056

約数和(自身を除く): 115715109

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 65707, 197121, 591363, 1774089, 2693987, 5322267, 8081961, 24245883, 72737649, 218212947]

約数ペア:

[(1, 218212947), (3, 72737649), (9, 24245883), (27, 8081961), (41, 5322267), (81, 2693987), (123, 1774089), (369, 591363), (1107, 197121), (3321, 65707)]