19399975

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6521}}^1$

素因数の和:6555

約数の個数: 24

約数和(自身を含む): 29114208

約数和(自身を除く): 9714233

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 6521, 32605, 45647, 110857, 163025, 228235, 554285, 775999, 1141175, 2771425, 3879995, 19399975]

約数ペア:

[(1, 19399975), (5, 3879995), (7, 2771425), (17, 1141175), (25, 775999), (35, 554285), (85, 228235), (119, 163025), (175, 110857), (425, 45647), (595, 32605), (2975, 6521)]