21329514

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20789}}^1$

素因数の和:20819

約数の個数: 32

約数和(自身を含む): 49896000

約数和(自身を除く): 28566486

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20789, 41578, 62367, 124734, 187101, 374202, 394991, 561303, 789982, 1122606, 1184973, 2369946, 3554919, 7109838, 10664757, 21329514]

約数ペア:

[(1, 21329514), (2, 10664757), (3, 7109838), (6, 3554919), (9, 2369946), (18, 1184973), (19, 1122606), (27, 789982), (38, 561303), (54, 394991), (57, 374202), (114, 187101), (171, 124734), (342, 62367), (513, 41578), (1026, 20789)]