81428971

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 95879168

約数和(自身を除く): 14450197

約数列:

[1, 13, 31, 37, 43, 127, 403, 481, 559, 1147, 1333, 1591, 1651, 3937, 4699, 5461, 14911, 17329, 20683, 49321, 51181, 61087, 70993, 145669, 169291, 202057, 641173, 1893697, 2200783, 2626741, 6263767, 81428971]

約数ペア:

[(1, 81428971), (13, 6263767), (31, 2626741), (37, 2200783), (43, 1893697), (127, 641173), (403, 202057), (481, 169291), (559, 145669), (1147, 70993), (1333, 61087), (1591, 51181), (1651, 49321), (3937, 20683), (4699, 17329), (5461, 14911)]