21219726

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{7477}}^1$

素因数の和:7536

約数の個数: 32

約数和(自身を含む): 47380608

約数和(自身を除く): 26160882

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 129, 258, 473, 946, 1419, 2838, 7477, 14954, 22431, 44862, 82247, 164494, 246741, 321511, 493482, 643022, 964533, 1929066, 3536621, 7073242, 10609863, 21219726]

約数ペア:

[(1, 21219726), (2, 10609863), (3, 7073242), (6, 3536621), (11, 1929066), (22, 964533), (33, 643022), (43, 493482), (66, 321511), (86, 246741), (129, 164494), (258, 82247), (473, 44862), (946, 22431), (1419, 14954), (2838, 7477)]