19915196

素因数分解:

$2^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{2287}}^1$

素因数の和:2609

約数の個数: 24

約数和(自身を含む): 39975936

約数和(自身を除く): 20060740

約数列:

[1, 2, 4, 7, 14, 28, 311, 622, 1244, 2177, 2287, 4354, 4574, 8708, 9148, 16009, 32018, 64036, 711257, 1422514, 2845028, 4978799, 9957598, 19915196]

約数ペア:

[(1, 19915196), (2, 9957598), (4, 4978799), (7, 2845028), (14, 1422514), (28, 711257), (311, 64036), (622, 32018), (1244, 16009), (2177, 9148), (2287, 8708), (4354, 4574)]