21757036

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{21001}}^1$

素因数の和:21049

約数の個数: 24

約数和(自身を含む): 44692256

約数和(自身を除く): 22935220

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 21001, 42002, 84004, 147007, 294014, 588028, 777037, 1554074, 3108148, 5439259, 10878518, 21757036]

約数ペア:

[(1, 21757036), (2, 10878518), (4, 5439259), (7, 3108148), (14, 1554074), (28, 777037), (37, 588028), (74, 294014), (148, 147007), (259, 84004), (518, 42002), (1036, 21001)]