21351447

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4451}}^1$

素因数の和:4511

約数の個数: 24

約数和(自身を含む): 34031088

約数和(自身を除く): 12679641

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4451, 4797, 13353, 40059, 57863, 173589, 182491, 520767, 547473, 1642419, 2372383, 7117149, 21351447]

約数ペア:

[(1, 21351447), (3, 7117149), (9, 2372383), (13, 1642419), (39, 547473), (41, 520767), (117, 182491), (123, 173589), (369, 57863), (533, 40059), (1599, 13353), (4451, 4797)]