21221964

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{4241}}^1$

素因数の和:4390

約数の個数: 36

約数和(自身を含む): 54043080

約数和(自身を除く): 32821116

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 4241, 5004, 8482, 12723, 16964, 25446, 38169, 50892, 76338, 152676, 589499, 1178998, 1768497, 2357996, 3536994, 5305491, 7073988, 10610982, 21221964]

約数ペア:

[(1, 21221964), (2, 10610982), (3, 7073988), (4, 5305491), (6, 3536994), (9, 2357996), (12, 1768497), (18, 1178998), (36, 589499), (139, 152676), (278, 76338), (417, 50892), (556, 38169), (834, 25446), (1251, 16964), (1668, 12723), (2502, 8482), (4241, 5004)]