218691207

素因数分解:

$3^2\times 7^1\times {\mathrm{1747}}^1\times {\mathrm{1987}}^1$

素因数の和:3747

約数の個数: 24

約数和(自身を含む): 361402496

約数和(自身を除く): 142711289

約数列:

[1, 3, 7, 9, 21, 63, 1747, 1987, 5241, 5961, 12229, 13909, 15723, 17883, 36687, 41727, 110061, 125181, 3471289, 10413867, 24299023, 31241601, 72897069, 218691207]

約数ペア:

[(1, 218691207), (3, 72897069), (7, 31241601), (9, 24299023), (21, 10413867), (63, 3471289), (1747, 125181), (1987, 110061), (5241, 41727), (5961, 36687), (12229, 17883), (13909, 15723)]