81564138

素因数分解:

$2^1\times 3^3\times {\mathrm{53}}^1\times {\mathrm{28499}}^1$

素因数の和:28563

約数の個数: 32

約数和(自身を含む): 184680000

約数和(自身を除く): 103115862

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 106, 159, 318, 477, 954, 1431, 2862, 28499, 56998, 85497, 170994, 256491, 512982, 769473, 1510447, 1538946, 3020894, 4531341, 9062682, 13594023, 27188046, 40782069, 81564138]

約数ペア:

[(1, 81564138), (2, 40782069), (3, 27188046), (6, 13594023), (9, 9062682), (18, 4531341), (27, 3020894), (53, 1538946), (54, 1510447), (106, 769473), (159, 512982), (318, 256491), (477, 170994), (954, 85497), (1431, 56998), (2862, 28499)]