20749419

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11184021

約数列:

[1, 3, 9, 27, 47, 83, 141, 197, 249, 423, 591, 747, 1269, 1773, 2241, 3901, 5319, 9259, 11703, 16351, 27777, 35109, 49053, 83331, 105327, 147159, 249993, 441477, 768497, 2305491, 6916473, 20749419]

約数ペア:

[(1, 20749419), (3, 6916473), (9, 2305491), (27, 768497), (47, 441477), (83, 249993), (141, 147159), (197, 105327), (249, 83331), (423, 49053), (591, 35109), (747, 27777), (1269, 16351), (1773, 11703), (2241, 9259), (3901, 5319)]