664686729

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{50969}}^1$

素因数の和:51011

約数の個数: 40

約数和(自身を含む): 1184135040

約数和(自身を除く): 519448311

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1863, 4347, 13041, 50969, 152907, 356783, 458721, 1070349, 1172287, 1376163, 3211047, 3516861, 4128489, 8206009, 9633141, 10550583, 24618027, 28899423, 31651749, 73854081, 94955247, 221562243, 664686729]

約数ペア:

[(1, 664686729), (3, 221562243), (7, 94955247), (9, 73854081), (21, 31651749), (23, 28899423), (27, 24618027), (63, 10550583), (69, 9633141), (81, 8206009), (161, 4128489), (189, 3516861), (207, 3211047), (483, 1376163), (567, 1172287), (621, 1070349), (1449, 458721), (1863, 356783), (4347, 152907), (13041, 50969)]