388961937

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{474923}}^1$

素因数の和:474949

約数の個数: 24

約数和(自身を含む): 691489344

約数和(自身を除く): 302527407

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 474923, 1424769, 3324461, 4274307, 6173999, 9973383, 18521997, 29920149, 43217993, 55565991, 129653979, 388961937]

約数ペア:

[(1, 388961937), (3, 129653979), (7, 55565991), (9, 43217993), (13, 29920149), (21, 18521997), (39, 9973383), (63, 6173999), (91, 4274307), (117, 3324461), (273, 1424769), (819, 474923)]