280709013

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{18503}}^1$

素因数の和:18908

約数の個数: 16

約数和(自身を含む): 404127360

約数和(自身を除く): 123418347

約数列:

[1, 3, 13, 39, 389, 1167, 5057, 15171, 18503, 55509, 240539, 721617, 7197667, 21593001, 93569671, 280709013]

約数ペア:

[(1, 280709013), (3, 93569671), (13, 21593001), (39, 7197667), (389, 721617), (1167, 240539), (5057, 55509), (15171, 18503)]