18040005

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9323}}^1$

素因数の和:9377

約数の個数: 24

約数和(自身を含む): 31999968

約数和(自身を除く): 13959963

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 9323, 27969, 46615, 83907, 139845, 400889, 419535, 1202667, 2004445, 3608001, 6013335, 18040005]

約数ペア:

[(1, 18040005), (3, 6013335), (5, 3608001), (9, 2004445), (15, 1202667), (43, 419535), (45, 400889), (129, 139845), (215, 83907), (387, 46615), (645, 27969), (1935, 9323)]