19878984372

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1003381}}^1$

素因数の和:1003528

約数の個数: 48

約数和(自身を含む): 50345695232

約数和(自身を除く): 30466710860

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 127, 156, 254, 381, 508, 762, 1524, 1651, 3302, 4953, 6604, 9906, 19812, 1003381, 2006762, 3010143, 4013524, 6020286, 12040572, 13043953, 26087906, 39131859, 52175812, 78263718, 127429387, 156527436, 254858774, 382288161, 509717548, 764576322, 1529152644, 1656582031, 3313164062, 4969746093, 6626328124, 9939492186, 19878984372]

約数ペア:

[(1, 19878984372), (2, 9939492186), (3, 6626328124), (4, 4969746093), (6, 3313164062), (12, 1656582031), (13, 1529152644), (26, 764576322), (39, 509717548), (52, 382288161), (78, 254858774), (127, 156527436), (156, 127429387), (254, 78263718), (381, 52175812), (508, 39131859), (762, 26087906), (1524, 13043953), (1651, 12040572), (3302, 6020286), (4953, 4013524), (6604, 3010143), (9906, 2006762), (19812, 1003381)]