21355184

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25183}}^1$

素因数の和:25244

約数の個数: 20

約数和(自身を含む): 42158016

約数和(自身を除く): 20802832

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25183, 50366, 100732, 201464, 402928, 1334699, 2669398, 5338796, 10677592, 21355184]

約数ペア:

[(1, 21355184), (2, 10677592), (4, 5338796), (8, 2669398), (16, 1334699), (53, 402928), (106, 201464), (212, 100732), (424, 50366), (848, 25183)]