31481055

素因数分解:

$3^4\times 5^1\times {\mathrm{77731}}^1$

素因数の和:77748

約数の個数: 20

約数和(自身を含む): 56433432

約数和(自身を除く): 24952377

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 77731, 233193, 388655, 699579, 1165965, 2098737, 3497895, 6296211, 10493685, 31481055]

約数ペア:

[(1, 31481055), (3, 10493685), (5, 6296211), (9, 3497895), (15, 2098737), (27, 1165965), (45, 699579), (81, 388655), (135, 233193), (405, 77731)]