645155918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{681983}}^1$

素因数の和:682039

約数の個数: 16

約数和(自身を含む): 1080262656

約数和(自身を除く): 435106738

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 681983, 1363966, 7501813, 15003626, 29325269, 58650538, 322577959, 645155918]

約数ペア:

[(1, 645155918), (2, 322577959), (11, 58650538), (22, 29325269), (43, 15003626), (86, 7501813), (473, 1363966), (946, 681983)]