21224565

素因数分解:

$3^3\times 5^1\times {\mathrm{157219}}^1$

素因数の和:157233

約数の個数: 16

約数和(自身を含む): 37732800

約数和(自身を除く): 16508235

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157219, 471657, 786095, 1414971, 2358285, 4244913, 7074855, 21224565]

約数ペア:

[(1, 21224565), (3, 7074855), (5, 4244913), (9, 2358285), (15, 1414971), (27, 786095), (45, 471657), (135, 157219)]