21709812

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 52157952

約数和(自身を除く): 30448140

約数列:

[1, 2, 3, 4, 6, 12, 71, 83, 142, 166, 213, 249, 284, 307, 332, 426, 498, 614, 852, 921, 996, 1228, 1842, 3684, 5893, 11786, 17679, 21797, 23572, 25481, 35358, 43594, 50962, 65391, 70716, 76443, 87188, 101924, 130782, 152886, 261564, 305772, 1809151, 3618302, 5427453, 7236604, 10854906, 21709812]

約数ペア:

[(1, 21709812), (2, 10854906), (3, 7236604), (4, 5427453), (6, 3618302), (12, 1809151), (71, 305772), (83, 261564), (142, 152886), (166, 130782), (213, 101924), (249, 87188), (284, 76443), (307, 70716), (332, 65391), (426, 50962), (498, 43594), (614, 35358), (852, 25481), (921, 23572), (996, 21797), (1228, 17679), (1842, 11786), (3684, 5893)]