21401534

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19853}}^1$

素因数の和:19880

約数の個数: 24

約数和(自身を含む): 40740408

約数和(自身を除く): 19338874

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19853, 39706, 138971, 218383, 277942, 436766, 972797, 1528681, 1945594, 3057362, 10700767, 21401534]

約数ペア:

[(1, 21401534), (2, 10700767), (7, 3057362), (11, 1945594), (14, 1528681), (22, 972797), (49, 436766), (77, 277942), (98, 218383), (154, 138971), (539, 39706), (1078, 19853)]