21061539

素因数分解:

$3^6\times {\mathrm{167}}^1\times {\mathrm{173}}^1$

素因数の和:358

約数の個数: 28

約数和(自身を含む): 31950576

約数和(自身を除く): 10889037

約数列:

[1, 3, 9, 27, 81, 167, 173, 243, 501, 519, 729, 1503, 1557, 4509, 4671, 13527, 14013, 28891, 40581, 42039, 86673, 121743, 126117, 260019, 780057, 2340171, 7020513, 21061539]

約数ペア:

[(1, 21061539), (3, 7020513), (9, 2340171), (27, 780057), (81, 260019), (167, 126117), (173, 121743), (243, 86673), (501, 42039), (519, 40581), (729, 28891), (1503, 14013), (1557, 13527), (4509, 4671)]