81238641

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{40357}}^1$

素因数の和:40432

約数の個数: 16

約数和(自身を含む): 120105408

約数和(自身を除く): 38866767

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 40357, 121071, 443927, 1331781, 2461777, 7385331, 27079547, 81238641]

約数ペア:

[(1, 81238641), (3, 27079547), (11, 7385331), (33, 2461777), (61, 1331781), (183, 443927), (671, 121071), (2013, 40357)]