20641986

素因数分解:

$2^1\times 3^3\times {\mathrm{509}}^1\times {\mathrm{751}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 46022400

約数和(自身を除く): 25380414

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 509, 751, 1018, 1502, 1527, 2253, 3054, 4506, 4581, 6759, 9162, 13518, 13743, 20277, 27486, 40554, 382259, 764518, 1146777, 2293554, 3440331, 6880662, 10320993, 20641986]

約数ペア:

[(1, 20641986), (2, 10320993), (3, 6880662), (6, 3440331), (9, 2293554), (18, 1146777), (27, 764518), (54, 382259), (509, 40554), (751, 27486), (1018, 20277), (1502, 13743), (1527, 13518), (2253, 9162), (3054, 6759), (4506, 4581)]