18994648

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{55217}}^1$

素因数の和:55266

約数の個数: 16

約数和(自身を含む): 36443880

約数和(自身を除く): 17449232

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 55217, 110434, 220868, 441736, 2374331, 4748662, 9497324, 18994648]

約数ペア:

[(1, 18994648), (2, 9497324), (4, 4748662), (8, 2374331), (43, 441736), (86, 220868), (172, 110434), (344, 55217)]