20951151

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1381}}^1$

素因数の和:1786

約数の個数: 16

約数和(自身を含む): 30182880

約数和(自身を除く): 9231729

約数列:

[1, 3, 13, 39, 389, 1167, 1381, 4143, 5057, 15171, 17953, 53859, 537209, 1611627, 6983717, 20951151]

約数ペア:

[(1, 20951151), (3, 6983717), (13, 1611627), (39, 537209), (389, 53859), (1167, 17953), (1381, 15171), (4143, 5057)]