81402034

素因数分解:

$2^1\times 7^2\times {\mathrm{421}}^1\times {\mathrm{1973}}^1$

素因数の和:2410

約数の個数: 24

約数和(自身を含む): 142447788

約数和(自身を除く): 61045754

約数列:

[1, 2, 7, 14, 49, 98, 421, 842, 1973, 2947, 3946, 5894, 13811, 20629, 27622, 41258, 96677, 193354, 830633, 1661266, 5814431, 11628862, 40701017, 81402034]

約数ペア:

[(1, 81402034), (2, 40701017), (7, 11628862), (14, 5814431), (49, 1661266), (98, 830633), (421, 193354), (842, 96677), (1973, 41258), (2947, 27622), (3946, 20629), (5894, 13811)]