21412818

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{169943}}^1$

素因数の和:169958

約数の個数: 24

約数和(自身を含む): 53022528

約数和(自身を除く): 31609710

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 169943, 339886, 509829, 1019658, 1189601, 1529487, 2379202, 3058974, 3568803, 7137606, 10706409, 21412818]

約数ペア:

[(1, 21412818), (2, 10706409), (3, 7137606), (6, 3568803), (7, 3058974), (9, 2379202), (14, 1529487), (18, 1189601), (21, 1019658), (42, 509829), (63, 339886), (126, 169943)]