18772317

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{4931}}^1$

素因数の和:4990

約数の個数: 20

約数和(自身を含む): 28645056

約数和(自身を除く): 9872739

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 4931, 14793, 44379, 133137, 231757, 399411, 695271, 2085813, 6257439, 18772317]

約数ペア:

[(1, 18772317), (3, 6257439), (9, 2085813), (27, 695271), (47, 399411), (81, 231757), (141, 133137), (423, 44379), (1269, 14793), (3807, 4931)]