21739606

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{12227}}^1$

素因数の和:12363

約数の個数: 16

約数和(自身を含む): 37564416

約数和(自身を除く): 15824810

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 12227, 24454, 85589, 171178, 1552829, 3105658, 10869803, 21739606]

約数ペア:

[(1, 21739606), (2, 10869803), (7, 3105658), (14, 1552829), (127, 171178), (254, 85589), (889, 24454), (1778, 12227)]