20806902

素因数分解:

$2^1\times 3^3\times {\mathrm{509}}^1\times {\mathrm{757}}^1$

素因数の和:1277

約数の個数: 32

約数和(自身を含む): 46389600

約数和(自身を除く): 25582698

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 509, 757, 1018, 1514, 1527, 2271, 3054, 4542, 4581, 6813, 9162, 13626, 13743, 20439, 27486, 40878, 385313, 770626, 1155939, 2311878, 3467817, 6935634, 10403451, 20806902]

約数ペア:

[(1, 20806902), (2, 10403451), (3, 6935634), (6, 3467817), (9, 2311878), (18, 1155939), (27, 770626), (54, 385313), (509, 40878), (757, 27486), (1018, 20439), (1514, 13743), (1527, 13626), (2271, 9162), (3054, 6813), (4542, 4581)]