21472105

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1609}}^1$

素因数の和:1788

約数の個数: 16

約数和(自身を含む): 27473040

約数和(自身を除く): 6000935

約数列:

[1, 5, 17, 85, 157, 785, 1609, 2669, 8045, 13345, 27353, 136765, 252613, 1263065, 4294421, 21472105]

約数ペア:

[(1, 21472105), (5, 4294421), (17, 1263065), (85, 252613), (157, 136765), (785, 27353), (1609, 13345), (2669, 8045)]