21218270

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6779}}^1$

素因数の和:7099

約数の個数: 16

約数和(自身を含む): 38320560

約数和(自身を除く): 17102290

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 6779, 13558, 33895, 67790, 2121827, 4243654, 10609135, 21218270]

約数ペア:

[(1, 21218270), (2, 10609135), (5, 4243654), (10, 2121827), (313, 67790), (626, 33895), (1565, 13558), (3130, 6779)]