20910561

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{58573}}^1$

素因数の和:58600

約数の個数: 16

約数和(自身を含む): 33738624

約数和(自身を除く): 12828063

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 58573, 175719, 410011, 995741, 1230033, 2987223, 6970187, 20910561]

約数ペア:

[(1, 20910561), (3, 6970187), (7, 2987223), (17, 1230033), (21, 995741), (51, 410011), (119, 175719), (357, 58573)]