28686511

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:295

約数の個数: 24

約数和(自身を含む): 34760880

約数和(自身を除く): 6074369

約数列:

[1, 7, 41, 49, 109, 131, 287, 763, 917, 2009, 4469, 5341, 5371, 6419, 14279, 31283, 37597, 99953, 218981, 263179, 585439, 699671, 4098073, 28686511]

約数ペア:

[(1, 28686511), (7, 4098073), (41, 699671), (49, 585439), (109, 263179), (131, 218981), (287, 99953), (763, 37597), (917, 31283), (2009, 14279), (4469, 6419), (5341, 5371)]