19767657

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:182

約数の個数: 64

約数和(自身を含む): 35409920

約数和(自身を除く): 15642263

約数列:

[1, 3, 7, 13, 19, 21, 37, 39, 57, 91, 103, 111, 133, 247, 259, 273, 309, 399, 481, 703, 721, 741, 777, 1339, 1443, 1729, 1957, 2109, 2163, 3367, 3811, 4017, 4921, 5187, 5871, 9139, 9373, 10101, 11433, 13699, 14763, 25441, 26677, 27417, 28119, 41097, 49543, 63973, 72409, 76323, 80031, 148629, 178087, 191919, 217227, 346801, 506863, 534261, 941317, 1040403, 1520589, 2823951, 6589219, 19767657]

約数ペア:

[(1, 19767657), (3, 6589219), (7, 2823951), (13, 1520589), (19, 1040403), (21, 941317), (37, 534261), (39, 506863), (57, 346801), (91, 217227), (103, 191919), (111, 178087), (133, 148629), (247, 80031), (259, 76323), (273, 72409), (309, 63973), (399, 49543), (481, 41097), (703, 28119), (721, 27417), (741, 26677), (777, 25441), (1339, 14763), (1443, 13699), (1729, 11433), (1957, 10101), (2109, 9373), (2163, 9139), (3367, 5871), (3811, 5187), (4017, 4921)]