81223012

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{21397}}^1$

素因数の和:21487

約数の個数: 24

約数和(自身を含む): 155178296

約数和(自身を除く): 73955284

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 21397, 42794, 85588, 278161, 556322, 1112644, 1561981, 3123962, 6247924, 20305753, 40611506, 81223012]

約数ペア:

[(1, 81223012), (2, 40611506), (4, 20305753), (13, 6247924), (26, 3123962), (52, 1561981), (73, 1112644), (146, 556322), (292, 278161), (949, 85588), (1898, 42794), (3796, 21397)]