5131231

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 6484320

約数和(自身を除く): 1353089

約数列:

[1, 7, 23, 29, 49, 157, 161, 203, 667, 1099, 1127, 1421, 3611, 4553, 4669, 7693, 25277, 31871, 32683, 104719, 176939, 223097, 733033, 5131231]

約数ペア:

[(1, 5131231), (7, 733033), (23, 223097), (29, 176939), (49, 104719), (157, 32683), (161, 31871), (203, 25277), (667, 7693), (1099, 4669), (1127, 4553), (1421, 3611)]