18645855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73121}}^1$

素因数の和:73146

約数の個数: 16

約数和(自身を含む): 31588704

約数和(自身を除く): 12942849

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 73121, 219363, 365605, 1096815, 1243057, 3729171, 6215285, 18645855]

約数ペア:

[(1, 18645855), (3, 6215285), (5, 3729171), (15, 1243057), (17, 1096815), (51, 365605), (85, 219363), (255, 73121)]