17739995

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 26492928

約数和(自身を除く): 8752933

約数列:

[1, 5, 7, 13, 35, 65, 91, 127, 307, 455, 635, 889, 1535, 1651, 2149, 3991, 4445, 8255, 10745, 11557, 19955, 27937, 38989, 57785, 139685, 194945, 272923, 506857, 1364615, 2534285, 3547999, 17739995]

約数ペア:

[(1, 17739995), (5, 3547999), (7, 2534285), (13, 1364615), (35, 506857), (65, 272923), (91, 194945), (127, 139685), (307, 57785), (455, 38989), (635, 27937), (889, 19955), (1535, 11557), (1651, 10745), (2149, 8255), (3991, 4445)]