19870713

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4007}}^1$

素因数の和:4061

約数の個数: 24

約数和(自身を含む): 31262400

約数和(自身を除く): 11391687

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4007, 4959, 12021, 36063, 76133, 116203, 228399, 348609, 685197, 1045827, 2207857, 6623571, 19870713]

約数ペア:

[(1, 19870713), (3, 6623571), (9, 2207857), (19, 1045827), (29, 685197), (57, 348609), (87, 228399), (171, 116203), (261, 76133), (551, 36063), (1653, 12021), (4007, 4959)]