20996870425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{49404401}}^1$

素因数の和:49404428

約数の個数: 12

約数和(自身を含む): 27567656316

約数和(自身を除く): 6570785891

約数列:

[1, 5, 17, 25, 85, 425, 49404401, 247022005, 839874817, 1235110025, 4199374085, 20996870425]

約数ペア:

[(1, 20996870425), (5, 4199374085), (17, 1235110025), (25, 839874817), (85, 247022005), (425, 49404401)]