18007815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 16828665

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 47, 89, 105, 123, 141, 205, 235, 267, 287, 329, 445, 615, 623, 705, 861, 987, 1335, 1435, 1645, 1869, 1927, 3115, 3649, 4183, 4305, 4935, 5781, 9345, 9635, 10947, 12549, 13489, 18245, 20915, 25543, 28905, 29281, 40467, 54735, 62745, 67445, 76629, 87843, 127715, 146405, 171503, 202335, 383145, 439215, 514509, 857515, 1200521, 2572545, 3601563, 6002605, 18007815]

約数ペア:

[(1, 18007815), (3, 6002605), (5, 3601563), (7, 2572545), (15, 1200521), (21, 857515), (35, 514509), (41, 439215), (47, 383145), (89, 202335), (105, 171503), (123, 146405), (141, 127715), (205, 87843), (235, 76629), (267, 67445), (287, 62745), (329, 54735), (445, 40467), (615, 29281), (623, 28905), (705, 25543), (861, 20915), (987, 18245), (1335, 13489), (1435, 12549), (1645, 10947), (1869, 9635), (1927, 9345), (3115, 5781), (3649, 4935), (4183, 4305)]