19964895

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28319}}^1$

素因数の和:28374

約数の個数: 16

約数和(自身を含む): 32624640

約数和(自身を除く): 12659745

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28319, 84957, 141595, 424785, 1330993, 3992979, 6654965, 19964895]

約数ペア:

[(1, 19964895), (3, 6654965), (5, 3992979), (15, 1330993), (47, 424785), (141, 141595), (235, 84957), (705, 28319)]