172921385

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{380047}}^1$

素因数の和:380072

約数の個数: 16

約数和(自身を含む): 255392256

約数和(自身を除く): 82470871

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 380047, 1900235, 2660329, 4940611, 13301645, 24703055, 34584277, 172921385]

約数ペア:

[(1, 172921385), (5, 34584277), (7, 24703055), (13, 13301645), (35, 4940611), (65, 2660329), (91, 1900235), (455, 380047)]