21726185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4231}}^1$

素因数の和:4328

約数の個数: 16

約数和(自身を含む): 28439040

約数和(自身を除く): 6712855

約数列:

[1, 5, 13, 65, 79, 395, 1027, 4231, 5135, 21155, 55003, 275015, 334249, 1671245, 4345237, 21726185]

約数ペア:

[(1, 21726185), (5, 4345237), (13, 1671245), (65, 334249), (79, 275015), (395, 55003), (1027, 21155), (4231, 5135)]