18019998

素因数分解:

$2^1\times 3^2\times {\mathrm{181}}^1\times {\mathrm{5531}}^1$

素因数の和:5720

約数の個数: 24

約数和(自身を含む): 39266136

約数和(自身を除く): 21246138

約数列:

[1, 2, 3, 6, 9, 18, 181, 362, 543, 1086, 1629, 3258, 5531, 11062, 16593, 33186, 49779, 99558, 1001111, 2002222, 3003333, 6006666, 9009999, 18019998]

約数ペア:

[(1, 18019998), (2, 9009999), (3, 6006666), (6, 3003333), (9, 2002222), (18, 1001111), (181, 99558), (362, 49779), (543, 33186), (1086, 16593), (1629, 11062), (3258, 5531)]