21019653

素因数分解:

$3^2\times {\mathrm{151}}^1\times {\mathrm{15467}}^1$

素因数の和:15624

約数の個数: 12

約数和(自身を含む): 30564768

約数和(自身を除く): 9545115

約数列:

[1, 3, 9, 151, 453, 1359, 15467, 46401, 139203, 2335517, 7006551, 21019653]

約数ペア:

[(1, 21019653), (3, 7006551), (9, 2335517), (151, 139203), (453, 46401), (1359, 15467)]