21604528

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122753}}^1$

素因数の和:122772

約数の個数: 20

約数和(自身を含む): 45664488

約数和(自身を除く): 24059960

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122753, 245506, 491012, 982024, 1350283, 1964048, 2700566, 5401132, 10802264, 21604528]

約数ペア:

[(1, 21604528), (2, 10802264), (4, 5401132), (8, 2700566), (11, 1964048), (16, 1350283), (22, 982024), (44, 491012), (88, 245506), (176, 122753)]