18678438

素因数分解:

$2^1\times 3^6\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:600

約数の個数: 56

約数和(自身を含む): 43912368

約数和(自身を除く): 25233930

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 81, 138, 162, 207, 243, 414, 486, 557, 621, 729, 1114, 1242, 1458, 1671, 1863, 3342, 3726, 5013, 5589, 10026, 11178, 12811, 15039, 16767, 25622, 30078, 33534, 38433, 45117, 76866, 90234, 115299, 135351, 230598, 270702, 345897, 406053, 691794, 812106, 1037691, 2075382, 3113073, 6226146, 9339219, 18678438]

約数ペア:

[(1, 18678438), (2, 9339219), (3, 6226146), (6, 3113073), (9, 2075382), (18, 1037691), (23, 812106), (27, 691794), (46, 406053), (54, 345897), (69, 270702), (81, 230598), (138, 135351), (162, 115299), (207, 90234), (243, 76866), (414, 45117), (486, 38433), (557, 33534), (621, 30078), (729, 25622), (1114, 16767), (1242, 15039), (1458, 12811), (1671, 11178), (1863, 10026), (3342, 5589), (3726, 5013)]