20702379

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4561}}^1$

素因数の和:4670

約数の個数: 16

約数和(自身を含む): 29561760

約数和(自身を除く): 8859381

約数列:

[1, 3, 17, 51, 89, 267, 1513, 4539, 4561, 13683, 77537, 232611, 405929, 1217787, 6900793, 20702379]

約数ペア:

[(1, 20702379), (3, 6900793), (17, 1217787), (51, 405929), (89, 232611), (267, 77537), (1513, 13683), (4539, 4561)]