1820175981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1\times {\mathrm{3491}}^1$

素因数の和:3997

約数の個数: 32

約数和(自身を含む): 2710350720

約数和(自身を除く): 890174739

約数列:

[1, 3, 13, 29, 39, 87, 377, 461, 1131, 1383, 3491, 5993, 10473, 13369, 17979, 40107, 45383, 101239, 136149, 173797, 303717, 521391, 1316107, 1609351, 3948321, 4828053, 20921563, 46671179, 62764689, 140013537, 606725327, 1820175981]

約数ペア:

[(1, 1820175981), (3, 606725327), (13, 140013537), (29, 62764689), (39, 46671179), (87, 20921563), (377, 4828053), (461, 3948321), (1131, 1609351), (1383, 1316107), (3491, 521391), (5993, 303717), (10473, 173797), (13369, 136149), (17979, 101239), (40107, 45383)]