20911212

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{82981}}^1$

素因数の和:82998

約数の個数: 36

約数和(自身を含む): 60410896

約数和(自身を除く): 39499684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 82981, 165962, 248943, 331924, 497886, 580867, 746829, 995772, 1161734, 1493658, 1742601, 2323468, 2987316, 3485202, 5227803, 6970404, 10455606, 20911212]

約数ペア:

[(1, 20911212), (2, 10455606), (3, 6970404), (4, 5227803), (6, 3485202), (7, 2987316), (9, 2323468), (12, 1742601), (14, 1493658), (18, 1161734), (21, 995772), (28, 746829), (36, 580867), (42, 497886), (63, 331924), (84, 248943), (126, 165962), (252, 82981)]