516881491

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 637009920

約数和(自身を除く): 120128429

約数列:

[1, 7, 19, 71, 127, 133, 431, 497, 889, 1349, 2413, 3017, 8189, 9017, 9443, 16891, 30601, 54737, 57323, 63119, 171323, 214207, 383159, 581419, 1040003, 1199261, 3886327, 4069933, 7280021, 27204289, 73840213, 516881491]

約数ペア:

[(1, 516881491), (7, 73840213), (19, 27204289), (71, 7280021), (127, 4069933), (133, 3886327), (431, 1199261), (497, 1040003), (889, 581419), (1349, 383159), (2413, 214207), (3017, 171323), (8189, 63119), (9017, 57323), (9443, 54737), (16891, 30601)]