20519578

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:438

約数の個数: 24

約数和(自身を含む): 33067584

約数和(自身を除く): 12548006

約数列:

[1, 2, 17, 34, 131, 262, 271, 289, 542, 578, 2227, 4454, 4607, 9214, 35501, 37859, 71002, 75718, 78319, 156638, 603517, 1207034, 10259789, 20519578]

約数ペア:

[(1, 20519578), (2, 10259789), (17, 1207034), (34, 603517), (131, 156638), (262, 78319), (271, 75718), (289, 71002), (542, 37859), (578, 35501), (2227, 9214), (4454, 4607)]