17620939

素因数分解:

$7^4\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 20

約数和(自身を含む): 21175560

約数和(自身を除く): 3554621

約数列:

[1, 7, 41, 49, 179, 287, 343, 1253, 2009, 2401, 7339, 8771, 14063, 51373, 61397, 98441, 359611, 429779, 2517277, 17620939]

約数ペア:

[(1, 17620939), (7, 2517277), (41, 429779), (49, 359611), (179, 98441), (287, 61397), (343, 51373), (1253, 14063), (2009, 8771), (2401, 7339)]