865808

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{1021}}^1$

素因数の和:1082

約数の個数: 20

約数和(自身を含む): 1710828

約数和(自身を除く): 845020

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 1021, 2042, 4084, 8168, 16336, 54113, 108226, 216452, 432904, 865808]

約数ペア:

[(1, 865808), (2, 432904), (4, 216452), (8, 108226), (16, 54113), (53, 16336), (106, 8168), (212, 4084), (424, 2042), (848, 1021)]