28108906

素因数分解:

$2^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 49390848

約数和(自身を除く): 21281942

約数列:

[1, 2, 7, 14, 101, 103, 193, 202, 206, 386, 707, 721, 1351, 1414, 1442, 2702, 10403, 19493, 19879, 20806, 38986, 39758, 72821, 136451, 139153, 145642, 272902, 278306, 2007779, 4015558, 14054453, 28108906]

約数ペア:

[(1, 28108906), (2, 14054453), (7, 4015558), (14, 2007779), (101, 278306), (103, 272902), (193, 145642), (202, 139153), (206, 136451), (386, 72821), (707, 39758), (721, 38986), (1351, 20806), (1414, 19879), (1442, 19493), (2702, 10403)]