21301684

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{457}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 38369408

約数和(自身を除く): 17067724

約数列:

[1, 2, 4, 43, 86, 172, 271, 457, 542, 914, 1084, 1828, 11653, 19651, 23306, 39302, 46612, 78604, 123847, 247694, 495388, 5325421, 10650842, 21301684]

約数ペア:

[(1, 21301684), (2, 10650842), (4, 5325421), (43, 495388), (86, 247694), (172, 123847), (271, 78604), (457, 46612), (542, 39302), (914, 23306), (1084, 19651), (1828, 11653)]