21973387

素因数分解:

${\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:402

約数の個数: 16

約数和(自身を含む): 23696640

約数和(自身を除く): 1723253

約数列:

[1, 29, 43, 67, 263, 1247, 1943, 2881, 7627, 11309, 17621, 83549, 327961, 511009, 757703, 21973387]

約数ペア:

[(1, 21973387), (29, 757703), (43, 511009), (67, 327961), (263, 83549), (1247, 17621), (1943, 11309), (2881, 7627)]