21011865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2411}}^1$

素因数の和:2509

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 17888871

約数列:

[1, 3, 5, 7, 15, 21, 35, 83, 105, 249, 415, 581, 1245, 1743, 2411, 2905, 7233, 8715, 12055, 16877, 36165, 50631, 84385, 200113, 253155, 600339, 1000565, 1400791, 3001695, 4202373, 7003955, 21011865]

約数ペア:

[(1, 21011865), (3, 7003955), (5, 4202373), (7, 3001695), (15, 1400791), (21, 1000565), (35, 600339), (83, 253155), (105, 200113), (249, 84385), (415, 50631), (581, 36165), (1245, 16877), (1743, 12055), (2411, 8715), (2905, 7233)]