19740231

素因数分解:

$3^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{727}}^1$

素因数の和:1171

約数の個数: 24

約数和(自身を含む): 32707584

約数和(自身を除く): 12967353

約数列:

[1, 3, 7, 9, 21, 63, 431, 727, 1293, 2181, 3017, 3879, 5089, 6543, 9051, 15267, 27153, 45801, 313337, 940011, 2193359, 2820033, 6580077, 19740231]

約数ペア:

[(1, 19740231), (3, 6580077), (7, 2820033), (9, 2193359), (21, 940011), (63, 313337), (431, 45801), (727, 27153), (1293, 15267), (2181, 9051), (3017, 6543), (3879, 5089)]