21691558

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{91141}}^1$

素因数の和:91167

約数の個数: 16

約数和(自身を含む): 39373344

約数和(自身を除く): 17681786

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 91141, 182282, 637987, 1275974, 1549397, 3098794, 10845779, 21691558]

約数ペア:

[(1, 21691558), (2, 10845779), (7, 3098794), (14, 1549397), (17, 1275974), (34, 637987), (119, 182282), (238, 91141)]