128973819

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{331}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 189489664

約数和(自身を除く): 60515845

約数列:

[1, 3, 13, 39, 97, 103, 291, 309, 331, 993, 1261, 1339, 3783, 4017, 4303, 9991, 12909, 29973, 32107, 34093, 96321, 102279, 129883, 389649, 417391, 443209, 1252173, 1329627, 3307021, 9921063, 42991273, 128973819]

約数ペア:

[(1, 128973819), (3, 42991273), (13, 9921063), (39, 3307021), (97, 1329627), (103, 1252173), (291, 443209), (309, 417391), (331, 389649), (993, 129883), (1261, 102279), (1339, 96321), (3783, 34093), (4017, 32107), (4303, 29973), (9991, 12909)]