19799985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{77647}}^1$

素因数の和:77672

約数の個数: 16

約数和(自身を含む): 33543936

約数和(自身を除く): 13743951

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 77647, 232941, 388235, 1164705, 1319999, 3959997, 6599995, 19799985]

約数ペア:

[(1, 19799985), (3, 6599995), (5, 3959997), (15, 1319999), (17, 1164705), (51, 388235), (85, 232941), (255, 77647)]