28317387

素因数分解:

$3^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{2137}}^1$

素因数の和:2778

約数の個数: 16

約数和(自身を含む): 43238912

約数和(自身を除く): 14921525

約数列:

[1, 3, 7, 21, 631, 1893, 2137, 4417, 6411, 13251, 14959, 44877, 1348447, 4045341, 9439129, 28317387]

約数ペア:

[(1, 28317387), (3, 9439129), (7, 4045341), (21, 1348447), (631, 44877), (1893, 14959), (2137, 13251), (4417, 6411)]