20999928

素因数分解:

$2^3\times 3^1\times {\mathrm{857}}^1\times {\mathrm{1021}}^1$

素因数の和:1887

約数の個数: 32

約数和(自身を含む): 52612560

約数和(自身を除く): 31612632

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 857, 1021, 1714, 2042, 2571, 3063, 3428, 4084, 5142, 6126, 6856, 8168, 10284, 12252, 20568, 24504, 874997, 1749994, 2624991, 3499988, 5249982, 6999976, 10499964, 20999928]

約数ペア:

[(1, 20999928), (2, 10499964), (3, 6999976), (4, 5249982), (6, 3499988), (8, 2624991), (12, 1749994), (24, 874997), (857, 24504), (1021, 20568), (1714, 12252), (2042, 10284), (2571, 8168), (3063, 6856), (3428, 6126), (4084, 5142)]