21837290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{293}}^1$

素因数の和:586

約数の個数: 32

約数和(自身を含む): 40960080

約数和(自身を除く): 19122790

約数列:

[1, 2, 5, 10, 29, 58, 145, 257, 290, 293, 514, 586, 1285, 1465, 2570, 2930, 7453, 8497, 14906, 16994, 37265, 42485, 74530, 75301, 84970, 150602, 376505, 753010, 2183729, 4367458, 10918645, 21837290]

約数ペア:

[(1, 21837290), (2, 10918645), (5, 4367458), (10, 2183729), (29, 753010), (58, 376505), (145, 150602), (257, 84970), (290, 75301), (293, 74530), (514, 42485), (586, 37265), (1285, 16994), (1465, 14906), (2570, 8497), (2930, 7453)]