21054332

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 42185472

約数和(自身を除く): 21131140

約数列:

[1, 2, 4, 13, 26, 31, 37, 52, 62, 74, 124, 148, 353, 403, 481, 706, 806, 962, 1147, 1412, 1612, 1924, 2294, 4588, 4589, 9178, 10943, 13061, 14911, 18356, 21886, 26122, 29822, 43772, 52244, 59644, 142259, 169793, 284518, 339586, 404891, 569036, 679172, 809782, 1619564, 5263583, 10527166, 21054332]

約数ペア:

[(1, 21054332), (2, 10527166), (4, 5263583), (13, 1619564), (26, 809782), (31, 679172), (37, 569036), (52, 404891), (62, 339586), (74, 284518), (124, 169793), (148, 142259), (353, 59644), (403, 52244), (481, 43772), (706, 29822), (806, 26122), (962, 21886), (1147, 18356), (1412, 14911), (1612, 13061), (1924, 10943), (2294, 9178), (4588, 4589)]