20858684

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67723}}^1$

素因数の和:67745

約数の個数: 24

約数和(自身を含む): 45510528

約数和(自身を除く): 24651844

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67723, 135446, 270892, 474061, 744953, 948122, 1489906, 1896244, 2979812, 5214671, 10429342, 20858684]

約数ペア:

[(1, 20858684), (2, 10429342), (4, 5214671), (7, 2979812), (11, 1896244), (14, 1489906), (22, 948122), (28, 744953), (44, 474061), (77, 270892), (154, 135446), (308, 67723)]