20696958

素因数分解:

$2^1\times 3^4\times {\mathrm{251}}^1\times {\mathrm{509}}^1$

素因数の和:774

約数の個数: 40

約数和(自身を含む): 46652760

約数和(自身を除く): 25955802

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 251, 502, 509, 753, 1018, 1506, 1527, 2259, 3054, 4518, 4581, 6777, 9162, 13554, 13743, 20331, 27486, 40662, 41229, 82458, 127759, 255518, 383277, 766554, 1149831, 2299662, 3449493, 6898986, 10348479, 20696958]

約数ペア:

[(1, 20696958), (2, 10348479), (3, 6898986), (6, 3449493), (9, 2299662), (18, 1149831), (27, 766554), (54, 383277), (81, 255518), (162, 127759), (251, 82458), (502, 41229), (509, 40662), (753, 27486), (1018, 20331), (1506, 13743), (1527, 13554), (2259, 9162), (3054, 6777), (4518, 4581)]