21357912

素因数分解:

$2^3\times 3^1\times {\mathrm{353}}^1\times {\mathrm{2521}}^1$

素因数の和:2883

約数の個数: 32

約数和(自身を含む): 53567280

約数和(自身を除く): 32209368

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 353, 706, 1059, 1412, 2118, 2521, 2824, 4236, 5042, 7563, 8472, 10084, 15126, 20168, 30252, 60504, 889913, 1779826, 2669739, 3559652, 5339478, 7119304, 10678956, 21357912]

約数ペア:

[(1, 21357912), (2, 10678956), (3, 7119304), (4, 5339478), (6, 3559652), (8, 2669739), (12, 1779826), (24, 889913), (353, 60504), (706, 30252), (1059, 20168), (1412, 15126), (2118, 10084), (2521, 8472), (2824, 7563), (4236, 5042)]