21364328

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 40961160

約数和(自身を除く): 19596832

約数列:

[1, 2, 4, 8, 101, 137, 193, 202, 274, 386, 404, 548, 772, 808, 1096, 1544, 13837, 19493, 26441, 27674, 38986, 52882, 55348, 77972, 105764, 110696, 155944, 211528, 2670541, 5341082, 10682164, 21364328]

約数ペア:

[(1, 21364328), (2, 10682164), (4, 5341082), (8, 2670541), (101, 211528), (137, 155944), (193, 110696), (202, 105764), (274, 77972), (386, 55348), (404, 52882), (548, 38986), (772, 27674), (808, 26441), (1096, 19493), (1544, 13837)]