21961664

素因数分解:

$2^6\times {\mathrm{409}}^1\times {\mathrm{839}}^1$

素因数の和:1260

約数の個数: 28

約数和(自身を含む): 43738800

約数和(自身を除く): 21777136

約数列:

[1, 2, 4, 8, 16, 32, 64, 409, 818, 839, 1636, 1678, 3272, 3356, 6544, 6712, 13088, 13424, 26176, 26848, 53696, 343151, 686302, 1372604, 2745208, 5490416, 10980832, 21961664]

約数ペア:

[(1, 21961664), (2, 10980832), (4, 5490416), (8, 2745208), (16, 1372604), (32, 686302), (64, 343151), (409, 53696), (818, 26848), (839, 26176), (1636, 13424), (1678, 13088), (3272, 6712), (3356, 6544)]