8680217

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 11741184

約数和(自身を除く): 3060967

約数列:

[1, 7, 13, 17, 31, 91, 119, 181, 217, 221, 403, 527, 1267, 1547, 2353, 2821, 3077, 3689, 5611, 6851, 16471, 21539, 39277, 40001, 47957, 72943, 95387, 280007, 510601, 667709, 1240031, 8680217]

約数ペア:

[(1, 8680217), (7, 1240031), (13, 667709), (17, 510601), (31, 280007), (91, 95387), (119, 72943), (181, 47957), (217, 40001), (221, 39277), (403, 21539), (527, 16471), (1267, 6851), (1547, 5611), (2353, 3689), (2821, 3077)]