18672801

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{883}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 30551040

約数和(自身を除く): 11878239

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 883, 1007, 1113, 2649, 3021, 6181, 7049, 16777, 18543, 21147, 46799, 50331, 117439, 140397, 327593, 352317, 889181, 982779, 2667543, 6224267, 18672801]

約数ペア:

[(1, 18672801), (3, 6224267), (7, 2667543), (19, 982779), (21, 889181), (53, 352317), (57, 327593), (133, 140397), (159, 117439), (371, 50331), (399, 46799), (883, 21147), (1007, 18543), (1113, 16777), (2649, 7049), (3021, 6181)]