81606921

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1361}}^1$

素因数の和:1477

約数の個数: 32

約数和(自身を含む): 125521920

約数和(自身を除く): 43914999

約数列:

[1, 3, 11, 23, 33, 69, 79, 237, 253, 759, 869, 1361, 1817, 2607, 4083, 5451, 14971, 19987, 31303, 44913, 59961, 93909, 107519, 322557, 344333, 1032999, 1182709, 2472937, 3548127, 7418811, 27202307, 81606921]

約数ペア:

[(1, 81606921), (3, 27202307), (11, 7418811), (23, 3548127), (33, 2472937), (69, 1182709), (79, 1032999), (237, 344333), (253, 322557), (759, 107519), (869, 93909), (1361, 59961), (1817, 44913), (2607, 31303), (4083, 19987), (5451, 14971)]