21477235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{8059}}^1$

素因数の和:8118

約数の個数: 16

約数和(自身を含む): 28435680

約数和(自身を除く): 6958445

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 8059, 40295, 104767, 330419, 523835, 1652095, 4295447, 21477235]

約数ペア:

[(1, 21477235), (5, 4295447), (13, 1652095), (41, 523835), (65, 330419), (205, 104767), (533, 40295), (2665, 8059)]