21384456

素因数分解:

$2^3\times 3^1\times {\mathrm{257}}^1\times {\mathrm{3467}}^1$

素因数の和:3733

約数の個数: 32

約数和(自身を含む): 53684640

約数和(自身を除く): 32300184

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 257, 514, 771, 1028, 1542, 2056, 3084, 3467, 6168, 6934, 10401, 13868, 20802, 27736, 41604, 83208, 891019, 1782038, 2673057, 3564076, 5346114, 7128152, 10692228, 21384456]

約数ペア:

[(1, 21384456), (2, 10692228), (3, 7128152), (4, 5346114), (6, 3564076), (8, 2673057), (12, 1782038), (24, 891019), (257, 83208), (514, 41604), (771, 27736), (1028, 20802), (1542, 13868), (2056, 10401), (3084, 6934), (3467, 6168)]