20512172331

素因数分解:

$3^2\times 7^1\times {\mathrm{13577}}^1\times {\mathrm{23981}}^1$

素因数の和:37571

約数の個数: 24

約数和(自身を含む): 33865269984

約数和(自身を除く): 13353097653

約数列:

[1, 3, 7, 9, 21, 63, 13577, 23981, 40731, 71943, 95039, 122193, 167867, 215829, 285117, 503601, 855351, 1510803, 325590037, 976770111, 2279130259, 2930310333, 6837390777, 20512172331]

約数ペア:

[(1, 20512172331), (3, 6837390777), (7, 2930310333), (9, 2279130259), (21, 976770111), (63, 325590037), (13577, 1510803), (23981, 855351), (40731, 503601), (71943, 285117), (95039, 215829), (122193, 167867)]