21401880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178349}}^1$

素因数の和:178363

約数の個数: 32

約数和(自身を含む): 64206000

約数和(自身を除く): 42804120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178349, 356698, 535047, 713396, 891745, 1070094, 1426792, 1783490, 2140188, 2675235, 3566980, 4280376, 5350470, 7133960, 10700940, 21401880]

約数ペア:

[(1, 21401880), (2, 10700940), (3, 7133960), (4, 5350470), (5, 4280376), (6, 3566980), (8, 2675235), (10, 2140188), (12, 1783490), (15, 1426792), (20, 1070094), (24, 891745), (30, 713396), (40, 535047), (60, 356698), (120, 178349)]