31311987

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{887}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 48960768

約数和(自身を除く): 17648781

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 887, 1681, 2661, 5043, 6209, 11767, 18627, 35301, 36367, 109101, 254569, 763707, 1491047, 4473141, 10437329, 31311987]

約数ペア:

[(1, 31311987), (3, 10437329), (7, 4473141), (21, 1491047), (41, 763707), (123, 254569), (287, 109101), (861, 36367), (887, 35301), (1681, 18627), (2661, 11767), (5043, 6209)]