21561922

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1\times {\mathrm{877}}^1$

素因数の和:1545

約数の個数: 16

約数和(自身を含む): 34136640

約数和(自身を除く): 12574718

約数列:

[1, 2, 19, 38, 647, 877, 1294, 1754, 12293, 16663, 24586, 33326, 567419, 1134838, 10780961, 21561922]

約数ペア:

[(1, 21561922), (2, 10780961), (19, 1134838), (38, 567419), (647, 33326), (877, 24586), (1294, 16663), (1754, 12293)]