21273545

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{709}}^1$

素因数の和:1084

約数の個数: 16

約数和(自身を含む): 27144720

約数和(自身を除く): 5871175

約数列:

[1, 5, 17, 85, 353, 709, 1765, 3545, 6001, 12053, 30005, 60265, 250277, 1251385, 4254709, 21273545]

約数ペア:

[(1, 21273545), (5, 4254709), (17, 1251385), (85, 250277), (353, 60265), (709, 30005), (1765, 12053), (3545, 6001)]