21000365560

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1462421}}^1$

素因数の和:1462791

約数の個数: 32

約数和(自身を含む): 47382472800

約数和(自身を除く): 26382107240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 2872, 3590, 7180, 14360, 1462421, 2924842, 5849684, 7312105, 11699368, 14624210, 29248420, 58496840, 525009139, 1050018278, 2100036556, 2625045695, 4200073112, 5250091390, 10500182780, 21000365560]

約数ペア:

[(1, 21000365560), (2, 10500182780), (4, 5250091390), (5, 4200073112), (8, 2625045695), (10, 2100036556), (20, 1050018278), (40, 525009139), (359, 58496840), (718, 29248420), (1436, 14624210), (1795, 11699368), (2872, 7312105), (3590, 5849684), (7180, 2924842), (14360, 1462421)]