21439874

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1\times {\mathrm{1181}}^1$

素因数の和:1525

約数の個数: 16

約数和(自身を含む): 33403320

約数和(自身を除く): 11963446

約数列:

[1, 2, 29, 58, 313, 626, 1181, 2362, 9077, 18154, 34249, 68498, 369653, 739306, 10719937, 21439874]

約数ペア:

[(1, 21439874), (2, 10719937), (29, 739306), (58, 369653), (313, 68498), (626, 34249), (1181, 18154), (2362, 9077)]