21799855

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{8089}}^1$

素因数の和:8119

約数の個数: 24

約数和(自身を含む): 33201360

約数和(自身を除く): 11401505

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 8089, 40445, 56623, 88979, 283115, 396361, 444895, 622853, 1981805, 3114265, 4359971, 21799855]

約数ペア:

[(1, 21799855), (5, 4359971), (7, 3114265), (11, 1981805), (35, 622853), (49, 444895), (55, 396361), (77, 283115), (245, 88979), (385, 56623), (539, 40445), (2695, 8089)]