20772565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16421}}^1$

素因数の和:16460

約数の個数: 16

約数和(自身を含む): 28377216

約数和(自身を除く): 7604651

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16421, 82105, 180631, 377683, 903155, 1888415, 4154513, 20772565]

約数ペア:

[(1, 20772565), (5, 4154513), (11, 1888415), (23, 903155), (55, 377683), (115, 180631), (253, 82105), (1265, 16421)]