20994347

素因数分解:

${\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 24769920

約数和(自身を除く): 3775573

約数列:

[1, 11, 29, 31, 121, 193, 319, 341, 899, 2123, 3509, 3751, 5597, 5983, 9889, 23353, 61567, 65813, 108779, 173507, 677237, 723943, 1908577, 20994347]

約数ペア:

[(1, 20994347), (11, 1908577), (29, 723943), (31, 677237), (121, 173507), (193, 108779), (319, 65813), (341, 61567), (899, 23353), (2123, 9889), (3509, 5983), (3751, 5597)]