20998762

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{9059}}^1$

素因数の和:9141

約数の個数: 16

約数和(自身を含む): 33703200

約数和(自身を除く): 12704438

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 9059, 18118, 172121, 344242, 552599, 1105198, 10499381, 20998762]

約数ペア:

[(1, 20998762), (2, 10499381), (19, 1105198), (38, 552599), (61, 344242), (122, 172121), (1159, 18118), (2318, 9059)]