20569227

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{7477}}^1$

素因数の和:7618

約数の個数: 16

約数和(自身を含む): 31587072

約数和(自身を除く): 11017845

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 7477, 22431, 52339, 157017, 979487, 2938461, 6856409, 20569227]

約数ペア:

[(1, 20569227), (3, 6856409), (7, 2938461), (21, 979487), (131, 157017), (393, 52339), (917, 22431), (2751, 7477)]