19941723

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{227}}^2$

素因数の和:503

約数の個数: 18

約数和(自身を含む): 29605004

約数和(自身を除く): 9663281

約数列:

[1, 3, 9, 43, 129, 227, 387, 681, 2043, 9761, 29283, 51529, 87849, 154587, 463761, 2215747, 6647241, 19941723]

約数ペア:

[(1, 19941723), (3, 6647241), (9, 2215747), (43, 463761), (129, 154587), (227, 87849), (387, 51529), (681, 29283), (2043, 9761)]