20187495

素因数分解:

$3^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{653}}^1$

素因数の和:896

約数の個数: 32

約数和(自身を含む): 36100800

約数和(自身を除く): 15913305

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 229, 653, 687, 1145, 1959, 2061, 3265, 3435, 5877, 6183, 9795, 10305, 17631, 29385, 30915, 88155, 149537, 448611, 747685, 1345833, 2243055, 4037499, 6729165, 20187495]

約数ペア:

[(1, 20187495), (3, 6729165), (5, 4037499), (9, 2243055), (15, 1345833), (27, 747685), (45, 448611), (135, 149537), (229, 88155), (653, 30915), (687, 29385), (1145, 17631), (1959, 10305), (2061, 9795), (3265, 6183), (3435, 5877)]