21340154

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{2687}}^1$

素因数の和:2738

約数の個数: 24

約数和(自身を含む): 36868608

約数和(自身を除く): 15528454

約数列:

[1, 2, 11, 19, 22, 38, 209, 361, 418, 722, 2687, 3971, 5374, 7942, 29557, 51053, 59114, 102106, 561583, 970007, 1123166, 1940014, 10670077, 21340154]

約数ペア:

[(1, 21340154), (2, 10670077), (11, 1940014), (19, 1123166), (22, 970007), (38, 561583), (209, 102106), (361, 59114), (418, 51053), (722, 29557), (2687, 7942), (3971, 5374)]