20171640987

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{509}}^1\times {\mathrm{191449}}^1$

素因数の和:191987

約数の個数: 24

約数和(自身を含む): 30463524000

約数和(自身を除く): 10291883013

約数列:

[1, 3, 9, 23, 69, 207, 509, 1527, 4581, 11707, 35121, 105363, 191449, 574347, 1723041, 4403327, 13209981, 39629943, 97447541, 292342623, 877027869, 2241293443, 6723880329, 20171640987]

約数ペア:

[(1, 20171640987), (3, 6723880329), (9, 2241293443), (23, 877027869), (69, 292342623), (207, 97447541), (509, 39629943), (1527, 13209981), (4581, 4403327), (11707, 1723041), (35121, 574347), (105363, 191449)]