21591207

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12829}}^1$

素因数の和:12863

約数の個数: 24

約数和(自身を含む): 36026640

約数和(自身を除く): 14435433

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 12829, 38487, 115461, 141119, 218093, 423357, 654279, 1270071, 1962837, 2399023, 7197069, 21591207]

約数ペア:

[(1, 21591207), (3, 7197069), (9, 2399023), (11, 1962837), (17, 1270071), (33, 654279), (51, 423357), (99, 218093), (153, 141119), (187, 115461), (561, 38487), (1683, 12829)]