1987401

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:536

約数の個数: 16

約数和(自身を含む): 2882880

約数和(自身を除く): 895479

約数列:

[1, 3, 13, 39, 131, 389, 393, 1167, 1703, 5057, 5109, 15171, 50959, 152877, 662467, 1987401]

約数ペア:

[(1, 1987401), (3, 662467), (13, 152877), (39, 50959), (131, 15171), (389, 5109), (393, 5057), (1167, 1703)]