21043564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{3793}}^1$

素因数の和:3889

約数の個数: 24

約数和(自身を含む): 39305840

約数和(自身を除く): 18262276

約数列:

[1, 2, 4, 19, 38, 73, 76, 146, 292, 1387, 2774, 3793, 5548, 7586, 15172, 72067, 144134, 276889, 288268, 553778, 1107556, 5260891, 10521782, 21043564]

約数ペア:

[(1, 21043564), (2, 10521782), (4, 5260891), (19, 1107556), (38, 553778), (73, 288268), (76, 276889), (146, 144134), (292, 72067), (1387, 15172), (2774, 7586), (3793, 5548)]