21131824

素因数分解:

$2^4\times 7^1\times {\mathrm{188677}}^1$

素因数の和:188692

約数の個数: 20

約数和(自身を含む): 46792144

約数和(自身を除く): 25660320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188677, 377354, 754708, 1320739, 1509416, 2641478, 3018832, 5282956, 10565912, 21131824]

約数ペア:

[(1, 21131824), (2, 10565912), (4, 5282956), (7, 3018832), (8, 2641478), (14, 1509416), (16, 1320739), (28, 754708), (56, 377354), (112, 188677)]