81538492

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67723}}^1$

素因数の和:67777

約数の個数: 24

約数和(自身を含む): 166871936

約数和(自身を除く): 85333444

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 67723, 135446, 270892, 474061, 948122, 1896244, 2912089, 5824178, 11648356, 20384623, 40769246, 81538492]

約数ペア:

[(1, 81538492), (2, 40769246), (4, 20384623), (7, 11648356), (14, 5824178), (28, 2912089), (43, 1896244), (86, 948122), (172, 474061), (301, 270892), (602, 135446), (1204, 67723)]