18117325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{907}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 24319872

約数和(自身を除く): 6202547

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 907, 1175, 3995, 4535, 15419, 19975, 22675, 42629, 77095, 213145, 385475, 724693, 1065725, 3623465, 18117325]

約数ペア:

[(1, 18117325), (5, 3623465), (17, 1065725), (25, 724693), (47, 385475), (85, 213145), (235, 77095), (425, 42629), (799, 22675), (907, 19975), (1175, 15419), (3995, 4535)]