21230972

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7817}}^1$

素因数の和:7925

約数の個数: 24

約数和(自身を含む): 42905184

約数和(自身を除く): 21674212

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 7817, 15634, 31268, 54719, 109438, 218876, 758249, 1516498, 3032996, 5307743, 10615486, 21230972]

約数ペア:

[(1, 21230972), (2, 10615486), (4, 5307743), (7, 3032996), (14, 1516498), (28, 758249), (97, 218876), (194, 109438), (388, 54719), (679, 31268), (1358, 15634), (2716, 7817)]