20645306

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{40801}}^1$

素因数の和:40837

約数の個数: 16

約数和(自身を含む): 35252928

約数和(自身を除く): 14607622

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 40801, 81602, 448811, 897622, 938423, 1876846, 10322653, 20645306]

約数ペア:

[(1, 20645306), (2, 10322653), (11, 1876846), (22, 938423), (23, 897622), (46, 448811), (253, 81602), (506, 40801)]