18120015

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21193}}^1$

素因数の和:21223

約数の個数: 24

約数和(自身を含む): 33062640

約数和(自身を除く): 14942625

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 21193, 63579, 105965, 190737, 317895, 402667, 953685, 1208001, 2013335, 3624003, 6040005, 18120015]

約数ペア:

[(1, 18120015), (3, 6040005), (5, 3624003), (9, 2013335), (15, 1208001), (19, 953685), (45, 402667), (57, 317895), (95, 190737), (171, 105965), (285, 63579), (855, 21193)]