20197265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2339}}^1$

素因数の和:2512

約数の個数: 16

約数和(自身を含む): 26619840

約数和(自身を除く): 6422575

約数列:

[1, 5, 11, 55, 157, 785, 1727, 2339, 8635, 11695, 25729, 128645, 367223, 1836115, 4039453, 20197265]

約数ペア:

[(1, 20197265), (5, 4039453), (11, 1836115), (55, 367223), (157, 128645), (785, 25729), (1727, 11695), (2339, 8635)]