647445663

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{19867}}^1$

素因数の和:19964

約数の個数: 32

約数和(自身を含む): 1029957120

約数和(自身を除く): 382511457

約数列:

[1, 3, 9, 17, 27, 51, 71, 153, 213, 459, 639, 1207, 1917, 3621, 10863, 19867, 32589, 59601, 178803, 337739, 536409, 1013217, 1410557, 3039651, 4231671, 9118953, 12695013, 23979469, 38085039, 71938407, 215815221, 647445663]

約数ペア:

[(1, 647445663), (3, 215815221), (9, 71938407), (17, 38085039), (27, 23979469), (51, 12695013), (71, 9118953), (153, 4231671), (213, 3039651), (459, 1410557), (639, 1013217), (1207, 536409), (1917, 337739), (3621, 178803), (10863, 59601), (19867, 32589)]