21393876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5923}}^1$

素因数の和:5980

約数の個数: 48

約数和(自身を含む): 58386944

約数和(自身を除く): 36993068

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 84, 86, 129, 172, 258, 301, 516, 602, 903, 1204, 1806, 3612, 5923, 11846, 17769, 23692, 35538, 41461, 71076, 82922, 124383, 165844, 248766, 254689, 497532, 509378, 764067, 1018756, 1528134, 1782823, 3056268, 3565646, 5348469, 7131292, 10696938, 21393876]

約数ペア:

[(1, 21393876), (2, 10696938), (3, 7131292), (4, 5348469), (6, 3565646), (7, 3056268), (12, 1782823), (14, 1528134), (21, 1018756), (28, 764067), (42, 509378), (43, 497532), (84, 254689), (86, 248766), (129, 165844), (172, 124383), (258, 82922), (301, 71076), (516, 41461), (602, 35538), (903, 23692), (1204, 17769), (1806, 11846), (3612, 5923)]