18839975

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9787}}^1$

素因数の和:9815

約数の個数: 24

約数和(自身を含む): 29129088

約数和(自身を除く): 10289113

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 9787, 48935, 68509, 107657, 244675, 342545, 538285, 753599, 1712725, 2691425, 3767995, 18839975]

約数ペア:

[(1, 18839975), (5, 3767995), (7, 2691425), (11, 1712725), (25, 753599), (35, 538285), (55, 342545), (77, 244675), (175, 107657), (275, 68509), (385, 48935), (1925, 9787)]