21348020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56179}}^1$

素因数の和:56207

約数の個数: 24

約数和(自身を含む): 47191200

約数和(自身を除く): 25843180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56179, 112358, 224716, 280895, 561790, 1067401, 1123580, 2134802, 4269604, 5337005, 10674010, 21348020]

約数ペア:

[(1, 21348020), (2, 10674010), (4, 5337005), (5, 4269604), (10, 2134802), (19, 1123580), (20, 1067401), (38, 561790), (76, 280895), (95, 224716), (190, 112358), (380, 56179)]