21037034837

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{18233}}^1$

素因数の和:18693

約数の個数: 32

約数和(自身を含む): 26793768960

約数和(自身を除く): 5756734123

約数列:

[1, 7, 13, 31, 91, 217, 403, 409, 2821, 2863, 5317, 12679, 18233, 37219, 88753, 127631, 164827, 237029, 565223, 1153789, 1659203, 3956561, 7347899, 7457297, 51435293, 52201079, 96944861, 231176207, 678614027, 1618233449, 3005290691, 21037034837]

約数ペア:

[(1, 21037034837), (7, 3005290691), (13, 1618233449), (31, 678614027), (91, 231176207), (217, 96944861), (403, 52201079), (409, 51435293), (2821, 7457297), (2863, 7347899), (5317, 3956561), (12679, 1659203), (18233, 1153789), (37219, 565223), (88753, 237029), (127631, 164827)]