18881416

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 36432000

約数和(自身を除く): 17550584

約数列:

[1, 2, 4, 8, 59, 109, 118, 218, 236, 367, 436, 472, 734, 872, 1468, 2936, 6431, 12862, 21653, 25724, 40003, 43306, 51448, 80006, 86612, 160012, 173224, 320024, 2360177, 4720354, 9440708, 18881416]

約数ペア:

[(1, 18881416), (2, 9440708), (4, 4720354), (8, 2360177), (59, 320024), (109, 173224), (118, 160012), (218, 86612), (236, 80006), (367, 51448), (436, 43306), (472, 40003), (734, 25724), (872, 21653), (1468, 12862), (2936, 6431)]