18431439

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 27808704

約数和(自身を除く): 9377265

約数列:

[1, 3, 13, 37, 39, 53, 111, 159, 241, 481, 689, 723, 1443, 1961, 2067, 3133, 5883, 8917, 9399, 12773, 25493, 26751, 38319, 76479, 115921, 166049, 347763, 472601, 498147, 1417803, 6143813, 18431439]

約数ペア:

[(1, 18431439), (3, 6143813), (13, 1417803), (37, 498147), (39, 472601), (53, 347763), (111, 166049), (159, 115921), (241, 76479), (481, 38319), (689, 26751), (723, 25493), (1443, 12773), (1961, 9399), (2067, 8917), (3133, 5883)]