19764979

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:654

約数の個数: 16

約数和(自身を含む): 22276800

約数和(自身を除く): 2511821

約数列:

[1, 13, 29, 103, 377, 509, 1339, 2987, 6617, 14761, 38831, 52427, 191893, 681551, 1520383, 19764979]

約数ペア:

[(1, 19764979), (13, 1520383), (29, 681551), (103, 191893), (377, 52427), (509, 38831), (1339, 14761), (2987, 6617)]