20915726

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{5399}}^1$

素因数の和:5563

約数の個数: 16

約数和(自身を含む): 34020000

約数和(自身を除く): 13104274

約数列:

[1, 2, 13, 26, 149, 298, 1937, 3874, 5399, 10798, 70187, 140374, 804451, 1608902, 10457863, 20915726]

約数ペア:

[(1, 20915726), (2, 10457863), (13, 1608902), (26, 804451), (149, 140374), (298, 70187), (1937, 10798), (3874, 5399)]