21371824

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32579}}^1$

素因数の和:32628

約数の個数: 20

約数和(自身を含む): 42419160

約数和(自身を除く): 21047336

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32579, 65158, 130316, 260632, 521264, 1335739, 2671478, 5342956, 10685912, 21371824]

約数ペア:

[(1, 21371824), (2, 10685912), (4, 5342956), (8, 2671478), (16, 1335739), (41, 521264), (82, 260632), (164, 130316), (328, 65158), (656, 32579)]