20709316

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6337}}^1$

素因数の和:6403

約数の個数: 24

約数和(自身を含む): 39042080

約数和(自身を除く): 18332764

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6337, 12674, 25348, 120403, 240806, 272491, 481612, 544982, 1089964, 5177329, 10354658, 20709316]

約数ペア:

[(1, 20709316), (2, 10354658), (4, 5177329), (19, 1089964), (38, 544982), (43, 481612), (76, 272491), (86, 240806), (172, 120403), (817, 25348), (1634, 12674), (3268, 6337)]