19895135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{997}}^1$

素因数の和:1322

約数の個数: 16

約数和(自身を含む): 25820256

約数和(自身を除く): 5925121

約数列:

[1, 5, 13, 65, 307, 997, 1535, 3991, 4985, 12961, 19955, 64805, 306079, 1530395, 3979027, 19895135]

約数ペア:

[(1, 19895135), (5, 3979027), (13, 1530395), (65, 306079), (307, 64805), (997, 19955), (1535, 12961), (3991, 4985)]