21623485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4211}}^1$

素因数の和:4308

約数の個数: 16

約数和(自身を含む): 28304640

約数和(自身を除く): 6681155

約数列:

[1, 5, 13, 65, 79, 395, 1027, 4211, 5135, 21055, 54743, 273715, 332669, 1663345, 4324697, 21623485]

約数ペア:

[(1, 21623485), (5, 4324697), (13, 1663345), (65, 332669), (79, 273715), (395, 54743), (1027, 21055), (4211, 5135)]