19992303

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{547}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 30091776

約数和(自身を除く): 10099473

約数列:

[1, 3, 9, 31, 93, 131, 279, 393, 547, 1179, 1641, 4061, 4923, 12183, 16957, 36549, 50871, 71657, 152613, 214971, 644913, 2221367, 6664101, 19992303]

約数ペア:

[(1, 19992303), (3, 6664101), (9, 2221367), (31, 644913), (93, 214971), (131, 152613), (279, 71657), (393, 50871), (547, 36549), (1179, 16957), (1641, 12183), (4061, 4923)]