28405727

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 33369600

約数和(自身を除く): 4963873

約数列:

[1, 7, 59, 109, 413, 631, 763, 4417, 6431, 37229, 45017, 68779, 260603, 481453, 4057961, 28405727]

約数ペア:

[(1, 28405727), (7, 4057961), (59, 481453), (109, 260603), (413, 68779), (631, 45017), (763, 37229), (4417, 6431)]