21353017

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5179}}^1$

素因数の和:5236

約数の個数: 16

約数和(自身を含む): 26521600

約数和(自身を除く): 5168583

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 5179, 36253, 98401, 160549, 688807, 1123843, 3050431, 21353017]

約数ペア:

[(1, 21353017), (7, 3050431), (19, 1123843), (31, 688807), (133, 160549), (217, 98401), (589, 36253), (4123, 5179)]