18280305

素因数分解:

$3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1499}}^1$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 31824000

約数和(自身を除く): 13543695

約数列:

[1, 3, 5, 9, 15, 45, 271, 813, 1355, 1499, 2439, 4065, 4497, 7495, 12195, 13491, 22485, 67455, 406229, 1218687, 2031145, 3656061, 6093435, 18280305]

約数ペア:

[(1, 18280305), (3, 6093435), (5, 3656061), (9, 2031145), (15, 1218687), (45, 406229), (271, 67455), (813, 22485), (1355, 13491), (1499, 12195), (2439, 7495), (4065, 4497)]