21103884

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13633}}^1$

素因数の和:13686

約数の個数: 36

約数和(自身を含む): 54590536

約数和(自身を除く): 33486652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13633, 27266, 40899, 54532, 81798, 122697, 163596, 245394, 490788, 586219, 1172438, 1758657, 2344876, 3517314, 5275971, 7034628, 10551942, 21103884]

約数ペア:

[(1, 21103884), (2, 10551942), (3, 7034628), (4, 5275971), (6, 3517314), (9, 2344876), (12, 1758657), (18, 1172438), (36, 586219), (43, 490788), (86, 245394), (129, 163596), (172, 122697), (258, 81798), (387, 54532), (516, 40899), (774, 27266), (1548, 13633)]