2100505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:408

約数の個数: 16

約数和(自身を含む): 2778048

約数和(自身を除く): 677543

約数列:

[1, 5, 11, 55, 181, 211, 905, 1055, 1991, 2321, 9955, 11605, 38191, 190955, 420101, 2100505]

約数ペア:

[(1, 2100505), (5, 420101), (11, 190955), (55, 38191), (181, 11605), (211, 9955), (905, 2321), (1055, 1991)]