18486027

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2111}}^1$

素因数の和:2263

約数の個数: 24

約数和(自身を含む): 30750720

約数和(自身を除く): 12264693

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2111, 2919, 6333, 8757, 14777, 18999, 44331, 132993, 293429, 880287, 2054003, 2640861, 6162009, 18486027]

約数ペア:

[(1, 18486027), (3, 6162009), (7, 2640861), (9, 2054003), (21, 880287), (63, 293429), (139, 132993), (417, 44331), (973, 18999), (1251, 14777), (2111, 8757), (2919, 6333)]