21022204

素因数分解:

$2^2\times 7^1\times {\mathrm{677}}^1\times {\mathrm{1109}}^1$

素因数の和:1797

約数の個数: 24

約数和(自身を含む): 42144480

約数和(自身を除く): 21122276

約数列:

[1, 2, 4, 7, 14, 28, 677, 1109, 1354, 2218, 2708, 4436, 4739, 7763, 9478, 15526, 18956, 31052, 750793, 1501586, 3003172, 5255551, 10511102, 21022204]

約数ペア:

[(1, 21022204), (2, 10511102), (4, 5255551), (7, 3003172), (14, 1501586), (28, 750793), (677, 31052), (1109, 18956), (1354, 15526), (2218, 9478), (2708, 7763), (4436, 4739)]