431451639

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{19867}}^1$

素因数の和:20019

約数の個数: 24

約数和(自身を含む): 661207040

約数和(自身を除く): 229755401

約数列:

[1, 3, 9, 19, 57, 127, 171, 381, 1143, 2413, 7239, 19867, 21717, 59601, 178803, 377473, 1132419, 2523109, 3397257, 7569327, 22707981, 47939071, 143817213, 431451639]

約数ペア:

[(1, 431451639), (3, 143817213), (9, 47939071), (19, 22707981), (57, 7569327), (127, 3397257), (171, 2523109), (381, 1132419), (1143, 377473), (2413, 178803), (7239, 59601), (19867, 21717)]