20072213

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 24377760

約数和(自身を除く): 4305547

約数列:

[1, 7, 49, 53, 59, 131, 371, 413, 917, 2597, 2891, 3127, 6419, 6943, 7729, 21889, 48601, 54103, 153223, 340207, 378721, 409637, 2867459, 20072213]

約数ペア:

[(1, 20072213), (7, 2867459), (49, 409637), (53, 378721), (59, 340207), (131, 153223), (371, 54103), (413, 48601), (917, 21889), (2597, 7729), (2891, 6943), (3127, 6419)]