21713896

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2383}}^1$

素因数の和:2473

約数の個数: 32

約数和(自身を含む): 43770240

約数和(自身を除く): 22056344

約数列:

[1, 2, 4, 8, 17, 34, 67, 68, 134, 136, 268, 536, 1139, 2278, 2383, 4556, 4766, 9112, 9532, 19064, 40511, 81022, 159661, 162044, 319322, 324088, 638644, 1277288, 2714237, 5428474, 10856948, 21713896]

約数ペア:

[(1, 21713896), (2, 10856948), (4, 5428474), (8, 2714237), (17, 1277288), (34, 638644), (67, 324088), (68, 319322), (134, 162044), (136, 159661), (268, 81022), (536, 40511), (1139, 19064), (2278, 9532), (2383, 9112), (4556, 4766)]