21856268

素因数分解:

$2^2\times 7^1\times {\mathrm{677}}^1\times {\mathrm{1153}}^1$

素因数の和:1841

約数の個数: 24

約数和(自身を含む): 43815072

約数和(自身を除く): 21958804

約数列:

[1, 2, 4, 7, 14, 28, 677, 1153, 1354, 2306, 2708, 4612, 4739, 8071, 9478, 16142, 18956, 32284, 780581, 1561162, 3122324, 5464067, 10928134, 21856268]

約数ペア:

[(1, 21856268), (2, 10928134), (4, 5464067), (7, 3122324), (14, 1561162), (28, 780581), (677, 32284), (1153, 18956), (1354, 16142), (2306, 9478), (2708, 8071), (4612, 4739)]