17920071

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1579}}^1$

素因数の和:1695

約数の個数: 24

約数和(自身を含む): 28180880

約数和(自身を除く): 10260809

約数列:

[1, 3, 9, 13, 39, 97, 117, 291, 873, 1261, 1579, 3783, 4737, 11349, 14211, 20527, 61581, 153163, 184743, 459489, 1378467, 1991119, 5973357, 17920071]

約数ペア:

[(1, 17920071), (3, 5973357), (9, 1991119), (13, 1378467), (39, 459489), (97, 184743), (117, 153163), (291, 61581), (873, 20527), (1261, 14211), (1579, 11349), (3783, 4737)]