21404940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{356749}}^1$

素因数の和:356761

約数の個数: 24

約数和(自身を含む): 59934000

約数和(自身を除く): 38529060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 356749, 713498, 1070247, 1426996, 1783745, 2140494, 3567490, 4280988, 5351235, 7134980, 10702470, 21404940]

約数ペア:

[(1, 21404940), (2, 10702470), (3, 7134980), (4, 5351235), (5, 4280988), (6, 3567490), (10, 2140494), (12, 1783745), (15, 1426996), (20, 1070247), (30, 713498), (60, 356749)]