398049309

素因数分解:

$3^{12}\times 7^1\times {\mathrm{107}}^1$

素因数の和:150

約数の個数: 52

約数和(自身を含む): 688747104

約数和(自身を除く): 290697795

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 107, 189, 243, 321, 567, 729, 749, 963, 1701, 2187, 2247, 2889, 5103, 6561, 6741, 8667, 15309, 19683, 20223, 26001, 45927, 59049, 60669, 78003, 137781, 177147, 182007, 234009, 413343, 531441, 546021, 702027, 1240029, 1638063, 2106081, 3720087, 4914189, 6318243, 14742567, 18954729, 44227701, 56864187, 132683103, 398049309]

約数ペア:

[(1, 398049309), (3, 132683103), (7, 56864187), (9, 44227701), (21, 18954729), (27, 14742567), (63, 6318243), (81, 4914189), (107, 3720087), (189, 2106081), (243, 1638063), (321, 1240029), (567, 702027), (729, 546021), (749, 531441), (963, 413343), (1701, 234009), (2187, 182007), (2247, 177147), (2889, 137781), (5103, 78003), (6561, 60669), (6741, 59049), (8667, 45927), (15309, 26001), (19683, 20223)]