21040085

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{419}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 28153440

約数和(自身を除く): 7113355

約数列:

[1, 5, 11, 55, 83, 121, 415, 419, 605, 913, 2095, 4565, 4609, 10043, 23045, 34777, 50215, 50699, 173885, 253495, 382547, 1912735, 4208017, 21040085]

約数ペア:

[(1, 21040085), (5, 4208017), (11, 1912735), (55, 382547), (83, 253495), (121, 173885), (415, 50699), (419, 50215), (605, 34777), (913, 23045), (2095, 10043), (4565, 4609)]