81491991

素因数分解:

$3^1\times 7^1\times {\mathrm{967}}^1\times {\mathrm{4013}}^1$

素因数の和:4990

約数の個数: 16

約数和(自身を含む): 124337664

約数和(自身を除く): 42845673

約数列:

[1, 3, 7, 21, 967, 2901, 4013, 6769, 12039, 20307, 28091, 84273, 3880571, 11641713, 27163997, 81491991]

約数ペア:

[(1, 81491991), (3, 27163997), (7, 11641713), (21, 3880571), (967, 84273), (2901, 28091), (4013, 20307), (6769, 12039)]