21262890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64433}}^1$

素因数の和:64454

約数の個数: 32

約数和(自身を含む): 55670976

約数和(自身を除く): 34408086

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 64433, 128866, 193299, 322165, 386598, 644330, 708763, 966495, 1417526, 1932990, 2126289, 3543815, 4252578, 7087630, 10631445, 21262890]

約数ペア:

[(1, 21262890), (2, 10631445), (3, 7087630), (5, 4252578), (6, 3543815), (10, 2126289), (11, 1932990), (15, 1417526), (22, 966495), (30, 708763), (33, 644330), (55, 386598), (66, 322165), (110, 193299), (165, 128866), (330, 64433)]