206890256489

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{21066109}}^1$

素因数の和:21066200

約数の個数: 16

約数和(自身を含む): 250770973440

約数和(自身を除く): 43880716951

約数列:

[1, 7, 23, 61, 161, 427, 1403, 9821, 21066109, 147462763, 484520507, 1285032649, 3391643549, 8995228543, 29555750927, 206890256489]

約数ペア:

[(1, 206890256489), (7, 29555750927), (23, 8995228543), (61, 3391643549), (161, 1285032649), (427, 484520507), (1403, 147462763), (9821, 21066109)]