20648862

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1117}}^1$

素因数の和:1217

約数の個数: 48

約数和(自身を含む): 48834240

約数和(自身を除く): 28185378

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 79, 117, 158, 234, 237, 474, 711, 1027, 1117, 1422, 2054, 2234, 3081, 3351, 6162, 6702, 9243, 10053, 14521, 18486, 20106, 29042, 43563, 87126, 88243, 130689, 176486, 261378, 264729, 529458, 794187, 1147159, 1588374, 2294318, 3441477, 6882954, 10324431, 20648862]

約数ペア:

[(1, 20648862), (2, 10324431), (3, 6882954), (6, 3441477), (9, 2294318), (13, 1588374), (18, 1147159), (26, 794187), (39, 529458), (78, 264729), (79, 261378), (117, 176486), (158, 130689), (234, 88243), (237, 87126), (474, 43563), (711, 29042), (1027, 20106), (1117, 18486), (1422, 14521), (2054, 10053), (2234, 9243), (3081, 6702), (3351, 6162)]