18253815

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 30433536

約数和(自身を除く): 12179721

約数列:

[1, 3, 5, 15, 41, 67, 123, 201, 205, 335, 443, 615, 1005, 1329, 2215, 2747, 6645, 8241, 13735, 18163, 29681, 41205, 54489, 89043, 90815, 148405, 272445, 445215, 1216921, 3650763, 6084605, 18253815]

約数ペア:

[(1, 18253815), (3, 6084605), (5, 3650763), (15, 1216921), (41, 445215), (67, 272445), (123, 148405), (201, 90815), (205, 89043), (335, 54489), (443, 41205), (615, 29681), (1005, 18163), (1329, 13735), (2215, 8241), (2747, 6645)]