255853221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{769}}^1$

素因数の和:1253

約数の個数: 32

約数和(自身を含む): 388080000

約数和(自身を除く): 132226779

約数列:

[1, 3, 13, 19, 39, 57, 247, 449, 741, 769, 1347, 2307, 5837, 8531, 9997, 14611, 17511, 25593, 29991, 43833, 110903, 189943, 332709, 345281, 569829, 1035843, 4488653, 6560339, 13465959, 19681017, 85284407, 255853221]

約数ペア:

[(1, 255853221), (3, 85284407), (13, 19681017), (19, 13465959), (39, 6560339), (57, 4488653), (247, 1035843), (449, 569829), (741, 345281), (769, 332709), (1347, 189943), (2307, 110903), (5837, 43833), (8531, 29991), (9997, 25593), (14611, 17511)]