21911450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{39839}}^1$

素因数の和:39862

約数の個数: 24

約数和(自身を含む): 44461440

約数和(自身を除く): 22549990

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 39839, 79678, 199195, 398390, 438229, 876458, 995975, 1991950, 2191145, 4382290, 10955725, 21911450]

約数ペア:

[(1, 21911450), (2, 10955725), (5, 4382290), (10, 2191145), (11, 1991950), (22, 995975), (25, 876458), (50, 438229), (55, 398390), (110, 199195), (275, 79678), (550, 39839)]