21050810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6599}}^1$

素因数の和:6646

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 21717190

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 6599, 13198, 32995, 65990, 72589, 145178, 191371, 362945, 382742, 725890, 956855, 1913710, 2105081, 4210162, 10525405, 21050810]

約数ペア:

[(1, 21050810), (2, 10525405), (5, 4210162), (10, 2105081), (11, 1913710), (22, 956855), (29, 725890), (55, 382742), (58, 362945), (110, 191371), (145, 145178), (290, 72589), (319, 65990), (638, 32995), (1595, 13198), (3190, 6599)]