18956418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{243031}}^1$

素因数の和:243049

約数の個数: 16

約数和(自身を含む): 40829376

約数和(自身を除く): 21872958

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 243031, 486062, 729093, 1458186, 3159403, 6318806, 9478209, 18956418]

約数ペア:

[(1, 18956418), (2, 9478209), (3, 6318806), (6, 3159403), (13, 1458186), (26, 729093), (39, 486062), (78, 243031)]