221798759

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 280896000

約数和(自身を除く): 59097241

約数列:

[1, 7, 13, 59, 91, 109, 379, 413, 763, 767, 1417, 2653, 4927, 5369, 6431, 9919, 22361, 34489, 41311, 45017, 83603, 156527, 289177, 290693, 537043, 585221, 2034851, 2437349, 3759301, 17061443, 31685537, 221798759]

約数ペア:

[(1, 221798759), (7, 31685537), (13, 17061443), (59, 3759301), (91, 2437349), (109, 2034851), (379, 585221), (413, 537043), (763, 290693), (767, 289177), (1417, 156527), (2653, 83603), (4927, 45017), (5369, 41311), (6431, 34489), (9919, 22361)]