81433521

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{9803}}^1$

素因数の和:9893

約数の個数: 24

約数和(自身を含む): 128471616

約数和(自身を除く): 47038095

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2769, 8307, 9803, 29409, 88227, 127439, 382317, 696013, 1146951, 2088039, 6264117, 9048169, 27144507, 81433521]

約数ペア:

[(1, 81433521), (3, 27144507), (9, 9048169), (13, 6264117), (39, 2088039), (71, 1146951), (117, 696013), (213, 382317), (639, 127439), (923, 88227), (2769, 29409), (8307, 9803)]