1561131

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1213}}^1$

素因数の和:1243

約数の個数: 24

約数和(自身を含む): 2651376

約数和(自身を除く): 1090245

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1213, 1287, 3639, 10917, 13343, 15769, 40029, 47307, 120087, 141921, 173459, 520377, 1561131]

約数ペア:

[(1, 1561131), (3, 520377), (9, 173459), (11, 141921), (13, 120087), (33, 47307), (39, 40029), (99, 15769), (117, 13343), (143, 10917), (429, 3639), (1213, 1287)]