19719972

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{12739}}^1$

素因数の和:12792

約数の個数: 36

約数和(自身を含む): 51010960

約数和(自身を除く): 31290988

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 12739, 25478, 38217, 50956, 76434, 114651, 152868, 229302, 458604, 547777, 1095554, 1643331, 2191108, 3286662, 4929993, 6573324, 9859986, 19719972]

約数ペア:

[(1, 19719972), (2, 9859986), (3, 6573324), (4, 4929993), (6, 3286662), (9, 2191108), (12, 1643331), (18, 1095554), (36, 547777), (43, 458604), (86, 229302), (129, 152868), (172, 114651), (258, 76434), (387, 50956), (516, 38217), (774, 25478), (1548, 12739)]