21413644

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{811}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 45835776

約数和(自身を除く): 24422132

約数列:

[1, 2, 4, 7, 14, 23, 28, 41, 46, 82, 92, 161, 164, 287, 322, 574, 644, 811, 943, 1148, 1622, 1886, 3244, 3772, 5677, 6601, 11354, 13202, 18653, 22708, 26404, 33251, 37306, 66502, 74612, 130571, 133004, 232757, 261142, 465514, 522284, 764773, 931028, 1529546, 3059092, 5353411, 10706822, 21413644]

約数ペア:

[(1, 21413644), (2, 10706822), (4, 5353411), (7, 3059092), (14, 1529546), (23, 931028), (28, 764773), (41, 522284), (46, 465514), (82, 261142), (92, 232757), (161, 133004), (164, 130571), (287, 74612), (322, 66502), (574, 37306), (644, 33251), (811, 26404), (943, 22708), (1148, 18653), (1622, 13202), (1886, 11354), (3244, 6601), (3772, 5677)]