647520939

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{108517}}^1$

素因数の和:108556

約数の個数: 32

約数和(自身を含む): 1093861440

約数和(自身を除く): 446340501

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 351, 459, 663, 1989, 5967, 108517, 325551, 976653, 1410721, 1844789, 2929959, 4232163, 5534367, 12696489, 16603101, 23982257, 38089467, 49809303, 71946771, 215840313, 647520939]

約数ペア:

[(1, 647520939), (3, 215840313), (9, 71946771), (13, 49809303), (17, 38089467), (27, 23982257), (39, 16603101), (51, 12696489), (117, 5534367), (153, 4232163), (221, 2929959), (351, 1844789), (459, 1410721), (663, 976653), (1989, 325551), (5967, 108517)]