21432290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{194839}}^1$

素因数の和:194857

約数の個数: 16

約数和(自身を含む): 42085440

約数和(自身を除く): 20653150

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 194839, 389678, 974195, 1948390, 2143229, 4286458, 10716145, 21432290]

約数ペア:

[(1, 21432290), (2, 10716145), (5, 4286458), (10, 2143229), (11, 1948390), (22, 974195), (55, 389678), (110, 194839)]