19778361

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{4909}}^1$

素因数の和:5008

約数の個数: 16

約数和(自身を含む): 28281600

約数和(自身を除く): 8503239

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 4909, 14727, 83453, 250359, 387811, 1163433, 6592787, 19778361]

約数ペア:

[(1, 19778361), (3, 6592787), (17, 1163433), (51, 387811), (79, 250359), (237, 83453), (1343, 14727), (4029, 4909)]