8405937

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:830

約数の個数: 20

約数和(自身を含む): 12656116

約数和(自身を除く): 4250179

約数列:

[1, 3, 9, 27, 81, 157, 471, 661, 1413, 1983, 4239, 5949, 12717, 17847, 53541, 103777, 311331, 933993, 2801979, 8405937]

約数ペア:

[(1, 8405937), (3, 2801979), (9, 933993), (27, 311331), (81, 103777), (157, 53541), (471, 17847), (661, 12717), (1413, 5949), (1983, 4239)]