18477980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{54347}}^1$

素因数の和:54373

約数の個数: 24

約数和(自身を含む): 41087088

約数和(自身を除く): 22609108

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 54347, 108694, 217388, 271735, 543470, 923899, 1086940, 1847798, 3695596, 4619495, 9238990, 18477980]

約数ペア:

[(1, 18477980), (2, 9238990), (4, 4619495), (5, 3695596), (10, 1847798), (17, 1086940), (20, 923899), (34, 543470), (68, 271735), (85, 217388), (170, 108694), (340, 54347)]