28185507

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26317}}^1$

素因数の和:26347

約数の個数: 24

約数和(自身を含む): 49267296

約数和(自身を除く): 21081789

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26317, 78951, 184219, 236853, 447389, 552657, 1342167, 1657971, 3131723, 4026501, 9395169, 28185507]

約数ペア:

[(1, 28185507), (3, 9395169), (7, 4026501), (9, 3131723), (17, 1657971), (21, 1342167), (51, 552657), (63, 447389), (119, 236853), (153, 184219), (357, 78951), (1071, 26317)]