19851205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{1303}}^1$

素因数の和:1596

約数の個数: 16

約数和(自身を含む): 26100864

約数和(自身を除く): 6249659

約数列:

[1, 5, 11, 55, 277, 1303, 1385, 3047, 6515, 14333, 15235, 71665, 360931, 1804655, 3970241, 19851205]

約数ペア:

[(1, 19851205), (5, 3970241), (11, 1804655), (55, 360931), (277, 71665), (1303, 15235), (1385, 14333), (3047, 6515)]