20535757

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 24208128

約数和(自身を除く): 3672371

約数列:

[1, 11, 23, 47, 121, 157, 253, 517, 1081, 1727, 2783, 3611, 5687, 7379, 11891, 18997, 39721, 81169, 130801, 169717, 436931, 892859, 1866887, 20535757]

約数ペア:

[(1, 20535757), (11, 1866887), (23, 892859), (47, 436931), (121, 169717), (157, 130801), (253, 81169), (517, 39721), (1081, 18997), (1727, 11891), (2783, 7379), (3611, 5687)]