21064155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2417}}^1$

素因数の和:2515

約数の個数: 32

約数和(自身を含む): 38997504

約数和(自身を除く): 17933349

約数列:

[1, 3, 5, 7, 15, 21, 35, 83, 105, 249, 415, 581, 1245, 1743, 2417, 2905, 7251, 8715, 12085, 16919, 36255, 50757, 84595, 200611, 253785, 601833, 1003055, 1404277, 3009165, 4212831, 7021385, 21064155]

約数ペア:

[(1, 21064155), (3, 7021385), (5, 4212831), (7, 3009165), (15, 1404277), (21, 1003055), (35, 601833), (83, 253785), (105, 200611), (249, 84595), (415, 50757), (581, 36255), (1245, 16919), (1743, 12085), (2417, 8715), (2905, 7251)]