21613160

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2423}}^1$

素因数の和:2657

約数の個数: 32

約数和(自身を含む): 48867840

約数和(自身を除く): 27254680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 2423, 4460, 4846, 8920, 9692, 12115, 19384, 24230, 48460, 96920, 540329, 1080658, 2161316, 2701645, 4322632, 5403290, 10806580, 21613160]

約数ペア:

[(1, 21613160), (2, 10806580), (4, 5403290), (5, 4322632), (8, 2701645), (10, 2161316), (20, 1080658), (40, 540329), (223, 96920), (446, 48460), (892, 24230), (1115, 19384), (1784, 12115), (2230, 9692), (2423, 8920), (4460, 4846)]