20577435

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 34307328

約数和(自身を除く): 13729893

約数列:

[1, 3, 5, 15, 43, 61, 129, 183, 215, 305, 523, 645, 915, 1569, 2615, 2623, 7845, 7869, 13115, 22489, 31903, 39345, 67467, 95709, 112445, 159515, 337335, 478545, 1371829, 4115487, 6859145, 20577435]

約数ペア:

[(1, 20577435), (3, 6859145), (5, 4115487), (15, 1371829), (43, 478545), (61, 337335), (129, 159515), (183, 112445), (215, 95709), (305, 67467), (523, 39345), (645, 31903), (915, 22489), (1569, 13115), (2615, 7869), (2623, 7845)]