21098836208

素因数分解:

$2^4\times {\mathrm{823}}^1\times {\mathrm{1602281}}^1$

素因数の和:1603112

約数の個数: 20

約数和(自身を含む): 40928691408

約数和(自身を除く): 19829855200

約数列:

[1, 2, 4, 8, 16, 823, 1646, 3292, 6584, 13168, 1602281, 3204562, 6409124, 12818248, 25636496, 1318677263, 2637354526, 5274709052, 10549418104, 21098836208]

約数ペア:

[(1, 21098836208), (2, 10549418104), (4, 5274709052), (8, 2637354526), (16, 1318677263), (823, 25636496), (1646, 12818248), (3292, 6409124), (6584, 3204562), (13168, 1602281)]