20519135

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3469}}^1$

素因数の和:3507

約数の個数: 24

約数和(自身を含む): 30480480

約数和(自身を除く): 9961345

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3469, 5915, 17345, 24283, 45097, 121415, 225485, 315679, 586261, 1578395, 2931305, 4103827, 20519135]

約数ペア:

[(1, 20519135), (5, 4103827), (7, 2931305), (13, 1578395), (35, 586261), (65, 315679), (91, 225485), (169, 121415), (455, 45097), (845, 24283), (1183, 17345), (3469, 5915)]