20759915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16411}}^1$

素因数の和:16450

約数の個数: 16

約数和(自身を含む): 28359936

約数和(自身を除く): 7600021

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16411, 82055, 180521, 377453, 902605, 1887265, 4151983, 20759915]

約数ペア:

[(1, 20759915), (5, 4151983), (11, 1887265), (23, 902605), (55, 377453), (115, 180521), (253, 82055), (1265, 16411)]