19851657

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15497}}^1$

素因数の和:15568

約数の個数: 16

約数和(自身を含む): 30748032

約数和(自身を除く): 10896375

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15497, 46491, 108479, 325437, 945317, 2835951, 6617219, 19851657]

約数ペア:

[(1, 19851657), (3, 6617219), (7, 2835951), (21, 945317), (61, 325437), (183, 108479), (427, 46491), (1281, 15497)]