27978118

素因数分解:

$2^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{4021}}^1$

素因数の和:4108

約数の個数: 24

約数和(自身を含む): 49518864

約数和(自身を除く): 21540746

約数列:

[1, 2, 7, 14, 49, 71, 98, 142, 497, 994, 3479, 4021, 6958, 8042, 28147, 56294, 197029, 285491, 394058, 570982, 1998437, 3996874, 13989059, 27978118]

約数ペア:

[(1, 27978118), (2, 13989059), (7, 3996874), (14, 1998437), (49, 570982), (71, 394058), (98, 285491), (142, 197029), (497, 56294), (994, 28147), (3479, 8042), (4021, 6958)]