18238905

素因数分解:

$3^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{809}}^1$

素因数の和:990

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 14420295

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 167, 501, 809, 835, 1503, 2427, 2505, 4045, 4509, 7281, 7515, 12135, 21843, 22545, 36405, 109215, 135103, 405309, 675515, 1215927, 2026545, 3647781, 6079635, 18238905]

約数ペア:

[(1, 18238905), (3, 6079635), (5, 3647781), (9, 2026545), (15, 1215927), (27, 675515), (45, 405309), (135, 135103), (167, 109215), (501, 36405), (809, 22545), (835, 21843), (1503, 12135), (2427, 7515), (2505, 7281), (4045, 4509)]