21555045

素因数分解:

$3^3\times 5^1\times {\mathrm{159667}}^1$

素因数の和:159681

約数の個数: 16

約数和(自身を含む): 38320320

約数和(自身を除く): 16765275

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 159667, 479001, 798335, 1437003, 2395005, 4311009, 7185015, 21555045]

約数ペア:

[(1, 21555045), (3, 7185015), (5, 4311009), (9, 2395005), (15, 1437003), (27, 798335), (45, 479001), (135, 159667)]