20159739

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{263}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11773701

約数列:

[1, 3, 9, 17, 27, 51, 153, 167, 263, 459, 501, 789, 1503, 2367, 2839, 4471, 4509, 7101, 8517, 13413, 25551, 40239, 43921, 76653, 120717, 131763, 395289, 746657, 1185867, 2239971, 6719913, 20159739]

約数ペア:

[(1, 20159739), (3, 6719913), (9, 2239971), (17, 1185867), (27, 746657), (51, 395289), (153, 131763), (167, 120717), (263, 76653), (459, 43921), (501, 40239), (789, 25551), (1503, 13413), (2367, 8517), (2839, 7101), (4471, 4509)]