20436295

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1987}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 28555632

約数和(自身を除く): 8119337

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 1987, 2057, 9935, 10285, 21857, 33779, 109285, 168895, 240427, 371569, 1202135, 1857845, 4087259, 20436295]

約数ペア:

[(1, 20436295), (5, 4087259), (11, 1857845), (17, 1202135), (55, 371569), (85, 240427), (121, 168895), (187, 109285), (605, 33779), (935, 21857), (1987, 10285), (2057, 9935)]