81964617

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4139}}^1$

素因数の和:4213

約数の個数: 32

約数和(自身を含む): 133539840

約数和(自身を除く): 51575223

約数列:

[1, 3, 7, 21, 23, 41, 69, 123, 161, 287, 483, 861, 943, 2829, 4139, 6601, 12417, 19803, 28973, 86919, 95197, 169699, 285591, 509097, 666379, 1187893, 1999137, 3563679, 3903077, 11709231, 27321539, 81964617]

約数ペア:

[(1, 81964617), (3, 27321539), (7, 11709231), (21, 3903077), (23, 3563679), (41, 1999137), (69, 1187893), (123, 666379), (161, 509097), (287, 285591), (483, 169699), (861, 95197), (943, 86919), (2829, 28973), (4139, 19803), (6601, 12417)]