31281237

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{6521}}^1$

素因数の和:6581

約数の個数: 24

約数和(自身を含む): 49854168

約数和(自身を除く): 18572931

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4797, 6521, 19563, 58689, 84773, 254319, 267361, 762957, 802083, 2406249, 3475693, 10427079, 31281237]

約数ペア:

[(1, 31281237), (3, 10427079), (9, 3475693), (13, 2406249), (39, 802083), (41, 762957), (117, 267361), (123, 254319), (369, 84773), (533, 58689), (1599, 19563), (4797, 6521)]