19987356

素因数分解:

$2^2\times 3^1\times {\mathrm{103}}^2\times {\mathrm{157}}^1$

素因数の和:370

約数の個数: 36

約数和(自身を含む): 47394312

約数和(自身を除く): 27406956

約数列:

[1, 2, 3, 4, 6, 12, 103, 157, 206, 309, 314, 412, 471, 618, 628, 942, 1236, 1884, 10609, 16171, 21218, 31827, 32342, 42436, 48513, 63654, 64684, 97026, 127308, 194052, 1665613, 3331226, 4996839, 6662452, 9993678, 19987356]

約数ペア:

[(1, 19987356), (2, 9993678), (3, 6662452), (4, 4996839), (6, 3331226), (12, 1665613), (103, 194052), (157, 127308), (206, 97026), (309, 64684), (314, 63654), (412, 48513), (471, 42436), (618, 32342), (628, 31827), (942, 21218), (1236, 16171), (1884, 10609)]