21194348518

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{277217}}^1$

素因数の和:277396

約数の個数: 32

約数和(自身を含む): 37471002624

約数和(自身を除く): 16276654106

約数列:

[1, 2, 7, 14, 43, 86, 127, 254, 301, 602, 889, 1778, 5461, 10922, 38227, 76454, 277217, 554434, 1940519, 3881038, 11920331, 23840662, 35206559, 70413118, 83442317, 166884634, 246445913, 492891826, 1513882037, 3027764074, 10597174259, 21194348518]

約数ペア:

[(1, 21194348518), (2, 10597174259), (7, 3027764074), (14, 1513882037), (43, 492891826), (86, 246445913), (127, 166884634), (254, 83442317), (301, 70413118), (602, 35206559), (889, 23840662), (1778, 11920331), (5461, 3881038), (10922, 1940519), (38227, 554434), (76454, 277217)]