12651891

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 20866560

約数和(自身を除く): 8214669

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 857, 2109, 2571, 4921, 5999, 14763, 16283, 17997, 31709, 48849, 95127, 113981, 221963, 341943, 602471, 665889, 1807413, 4217297, 12651891]

約数ペア:

[(1, 12651891), (3, 4217297), (7, 1807413), (19, 665889), (21, 602471), (37, 341943), (57, 221963), (111, 113981), (133, 95127), (259, 48849), (399, 31709), (703, 17997), (777, 16283), (857, 14763), (2109, 5999), (2571, 4921)]