20817896

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1307}}^1$

素因数の和:1505

約数の個数: 32

約数和(自身を含む): 42850080

約数和(自身を除く): 22032184

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 181, 362, 724, 1307, 1448, 1991, 2614, 3982, 5228, 7964, 10456, 14377, 15928, 28754, 57508, 115016, 236567, 473134, 946268, 1892536, 2602237, 5204474, 10408948, 20817896]

約数ペア:

[(1, 20817896), (2, 10408948), (4, 5204474), (8, 2602237), (11, 1892536), (22, 946268), (44, 473134), (88, 236567), (181, 115016), (362, 57508), (724, 28754), (1307, 15928), (1448, 14377), (1991, 10456), (2614, 7964), (3982, 5228)]