81146871

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1721}}^1$

素因数の和:1784

約数の個数: 36

約数和(自身を含む): 131092416

約数和(自身を除く): 49945545

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 169, 279, 403, 507, 1209, 1521, 1721, 3627, 5163, 5239, 15489, 15717, 22373, 47151, 53351, 67119, 160053, 201357, 290849, 480159, 693563, 872547, 2080689, 2617641, 6242067, 9016319, 27048957, 81146871]

約数ペア:

[(1, 81146871), (3, 27048957), (9, 9016319), (13, 6242067), (31, 2617641), (39, 2080689), (93, 872547), (117, 693563), (169, 480159), (279, 290849), (403, 201357), (507, 160053), (1209, 67119), (1521, 53351), (1721, 47151), (3627, 22373), (5163, 15717), (5239, 15489)]