18170973

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{11807}}^1$

素因数の和:11838

約数の個数: 20

約数和(自身を含む): 28575360

約数和(自身を除く): 10404387

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 11807, 35421, 106263, 224333, 318789, 672999, 956367, 2018997, 6056991, 18170973]

約数ペア:

[(1, 18170973), (3, 6056991), (9, 2018997), (19, 956367), (27, 672999), (57, 318789), (81, 224333), (171, 106263), (513, 35421), (1539, 11807)]