287242551

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{2129}}^1$

素因数の和:2420

約数の個数: 32

約数和(自身を含む): 449856000

約数和(自身を除く): 162613449

約数列:

[1, 3, 9, 19, 27, 57, 171, 263, 513, 789, 2129, 2367, 4997, 6387, 7101, 14991, 19161, 40451, 44973, 57483, 121353, 134919, 364059, 559927, 1092177, 1679781, 5039343, 10638613, 15118029, 31915839, 95747517, 287242551]

約数ペア:

[(1, 287242551), (3, 95747517), (9, 31915839), (19, 15118029), (27, 10638613), (57, 5039343), (171, 1679781), (263, 1092177), (513, 559927), (789, 364059), (2129, 134919), (2367, 121353), (4997, 57483), (6387, 44973), (7101, 40451), (14991, 19161)]