21493147

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1213}}^1$

素因数の和:1302

約数の個数: 16

約数和(自身を含む): 24474240

約数和(自身を除く): 2981093

約数列:

[1, 13, 29, 47, 377, 611, 1213, 1363, 15769, 17719, 35177, 57011, 457301, 741143, 1653319, 21493147]

約数ペア:

[(1, 21493147), (13, 1653319), (29, 741143), (47, 457301), (377, 57011), (611, 35177), (1213, 17719), (1363, 15769)]