25207680001

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{972481}}^1$

素因数の和:972541

約数の個数: 18

約数和(自身を含む): 30653605122

約数和(自身を除く): 5445925121

約数列:

[1, 7, 23, 49, 161, 529, 1127, 3703, 25921, 972481, 6807367, 22367063, 47651569, 156569441, 514442449, 1095986087, 3601097143, 25207680001]

約数ペア:

[(1, 25207680001), (7, 3601097143), (23, 1095986087), (49, 514442449), (161, 156569441), (529, 47651569), (1127, 22367063), (3703, 6807367), (25921, 972481)]