20157821

素因数分解:

${\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:320

約数の個数: 16

約数和(自身を含む): 21725184

約数和(自身を除く): 1567363

約数列:

[1, 23, 67, 103, 127, 1541, 2369, 2921, 6901, 8509, 13081, 158723, 195707, 300863, 876427, 20157821]

約数ペア:

[(1, 20157821), (23, 876427), (67, 300863), (103, 195707), (127, 158723), (1541, 13081), (2369, 8509), (2921, 6901)]