1217990578

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{664117}}^1$

素因数の和:664257

約数の個数: 16

約数和(自身を含む): 2103925824

約数和(自身を除く): 885935246

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 664117, 1328234, 4648819, 9297638, 86999327, 173998654, 608995289, 1217990578]

約数ペア:

[(1, 1217990578), (2, 608995289), (7, 173998654), (14, 86999327), (131, 9297638), (262, 4648819), (917, 1328234), (1834, 664117)]