21303635

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 28381536

約数和(自身を除く): 7077901

約数列:

[1, 5, 17, 23, 85, 115, 289, 391, 641, 1445, 1955, 3205, 6647, 10897, 14743, 33235, 54485, 73715, 185249, 250631, 926245, 1253155, 4260727, 21303635]

約数ペア:

[(1, 21303635), (5, 4260727), (17, 1253155), (23, 926245), (85, 250631), (115, 185249), (289, 73715), (391, 54485), (641, 33235), (1445, 14743), (1955, 10897), (3205, 6647)]