20173896281

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{2903}}^1\times {\mathrm{12893}}^1$

素因数の和:15821

約数の個数: 24

約数和(自身を含む): 25611816384

約数和(自身を除く): 5437920103

約数列:

[1, 7, 11, 49, 77, 539, 2903, 12893, 20321, 31933, 90251, 141823, 142247, 223531, 631757, 992761, 1564717, 6949327, 37428379, 261998653, 411712169, 1833990571, 2881985183, 20173896281]

約数ペア:

[(1, 20173896281), (7, 2881985183), (11, 1833990571), (49, 411712169), (77, 261998653), (539, 37428379), (2903, 6949327), (12893, 1564717), (20321, 992761), (31933, 631757), (90251, 223531), (141823, 142247)]