81699191

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{2621}}^1$

素因数の和:2762

約数の個数: 16

約数和(自身を含む): 96237888

約数和(自身を除く): 14538697

約数列:

[1, 7, 61, 73, 427, 511, 2621, 4453, 18347, 31171, 159881, 191333, 1119167, 1339331, 11671313, 81699191]

約数ペア:

[(1, 81699191), (7, 11671313), (61, 1339331), (73, 1119167), (427, 191333), (511, 159881), (2621, 31171), (4453, 18347)]