21293867

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{1097}}^1$

素因数の和:1210

約数の個数: 16

約数和(自身を含む): 25297920

約数和(自身を除く): 4004053

約数列:

[1, 7, 47, 59, 329, 413, 1097, 2773, 7679, 19411, 51559, 64723, 360913, 453061, 3041981, 21293867]

約数ペア:

[(1, 21293867), (7, 3041981), (47, 453061), (59, 360913), (329, 64723), (413, 51559), (1097, 19411), (2773, 7679)]