21490568

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{149}}^2$

素因数の和:326

約数の個数: 36

約数和(自身を含む): 44590245

約数和(自身を除く): 23099677

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 149, 242, 298, 484, 596, 968, 1192, 1639, 3278, 6556, 13112, 18029, 22201, 36058, 44402, 72116, 88804, 144232, 177608, 244211, 488422, 976844, 1953688, 2686321, 5372642, 10745284, 21490568]

約数ペア:

[(1, 21490568), (2, 10745284), (4, 5372642), (8, 2686321), (11, 1953688), (22, 976844), (44, 488422), (88, 244211), (121, 177608), (149, 144232), (242, 88804), (298, 72116), (484, 44402), (596, 36058), (968, 22201), (1192, 18029), (1639, 13112), (3278, 6556)]