21993146

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{929}}^1$

素因数の和:1046

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 18182854

約数列:

[1, 2, 7, 14, 19, 38, 89, 133, 178, 266, 623, 929, 1246, 1691, 1858, 3382, 6503, 11837, 13006, 17651, 23674, 35302, 82681, 123557, 165362, 247114, 578767, 1157534, 1570939, 3141878, 10996573, 21993146]

約数ペア:

[(1, 21993146), (2, 10996573), (7, 3141878), (14, 1570939), (19, 1157534), (38, 578767), (89, 247114), (133, 165362), (178, 123557), (266, 82681), (623, 35302), (929, 23674), (1246, 17651), (1691, 13006), (1858, 11837), (3382, 6503)]