19709271

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 30430400

約数和(自身を除く): 10721129

約数列:

[1, 3, 9, 27, 37, 109, 111, 181, 327, 333, 543, 981, 999, 1629, 2943, 4033, 4887, 6697, 12099, 19729, 20091, 36297, 59187, 60273, 108891, 177561, 180819, 532683, 729973, 2189919, 6569757, 19709271]

約数ペア:

[(1, 19709271), (3, 6569757), (9, 2189919), (27, 729973), (37, 532683), (109, 180819), (111, 177561), (181, 108891), (327, 60273), (333, 59187), (543, 36297), (981, 20091), (999, 19729), (1629, 12099), (2943, 6697), (4033, 4887)]