19924085

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1493}}^1$

素因数の和:1672

約数の個数: 16

約数和(自身を含む): 25493616

約数和(自身を除く): 5569531

約数列:

[1, 5, 17, 85, 157, 785, 1493, 2669, 7465, 13345, 25381, 126905, 234401, 1172005, 3984817, 19924085]

約数ペア:

[(1, 19924085), (5, 3984817), (17, 1172005), (85, 234401), (157, 126905), (785, 25381), (1493, 13345), (2669, 7465)]