21687116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{10487}}^1$

素因数の和:10549

約数の個数: 24

約数和(自身を含む): 42287616

約数和(自身を除く): 20600500

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 10487, 20974, 41948, 115357, 230714, 461428, 492889, 985778, 1971556, 5421779, 10843558, 21687116]

約数ペア:

[(1, 21687116), (2, 10843558), (4, 5421779), (11, 1971556), (22, 985778), (44, 492889), (47, 461428), (94, 230714), (188, 115357), (517, 41948), (1034, 20974), (2068, 10487)]