18381615

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 34719840

約数和(自身を除く): 16338225

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 89, 105, 147, 245, 267, 281, 445, 623, 735, 843, 1335, 1405, 1869, 1967, 3115, 4215, 4361, 5901, 9345, 9835, 13083, 13769, 21805, 25009, 29505, 41307, 65415, 68845, 75027, 125045, 175063, 206535, 375135, 525189, 875315, 1225441, 2625945, 3676323, 6127205, 18381615]

約数ペア:

[(1, 18381615), (3, 6127205), (5, 3676323), (7, 2625945), (15, 1225441), (21, 875315), (35, 525189), (49, 375135), (89, 206535), (105, 175063), (147, 125045), (245, 75027), (267, 68845), (281, 65415), (445, 41307), (623, 29505), (735, 25009), (843, 21805), (1335, 13769), (1405, 13083), (1869, 9835), (1967, 9345), (3115, 5901), (4215, 4361)]