189967947

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 292900608

約数和(自身を除く): 102932661

約数列:

[1, 3, 13, 19, 39, 57, 103, 131, 247, 309, 361, 393, 741, 1083, 1339, 1703, 1957, 2489, 4017, 4693, 5109, 5871, 7467, 13493, 14079, 25441, 32357, 37183, 40479, 47291, 76323, 97071, 111549, 141873, 175409, 256367, 483379, 526227, 614783, 769101, 1450137, 1844349, 3332771, 4870973, 9998313, 14612919, 63322649, 189967947]

約数ペア:

[(1, 189967947), (3, 63322649), (13, 14612919), (19, 9998313), (39, 4870973), (57, 3332771), (103, 1844349), (131, 1450137), (247, 769101), (309, 614783), (361, 526227), (393, 483379), (741, 256367), (1083, 175409), (1339, 141873), (1703, 111549), (1957, 97071), (2489, 76323), (4017, 47291), (4693, 40479), (5109, 37183), (5871, 32357), (7467, 25441), (13493, 14079)]