21009204

素因数分解:

$2^2\times 3^2\times {\mathrm{457}}^1\times {\mathrm{1277}}^1$

素因数の和:1744

約数の個数: 36

約数和(自身を含む): 53264484

約数和(自身を除く): 32255280

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 457, 914, 1277, 1371, 1828, 2554, 2742, 3831, 4113, 5108, 5484, 7662, 8226, 11493, 15324, 16452, 22986, 45972, 583589, 1167178, 1750767, 2334356, 3501534, 5252301, 7003068, 10504602, 21009204]

約数ペア:

[(1, 21009204), (2, 10504602), (3, 7003068), (4, 5252301), (6, 3501534), (9, 2334356), (12, 1750767), (18, 1167178), (36, 583589), (457, 45972), (914, 22986), (1277, 16452), (1371, 15324), (1828, 11493), (2554, 8226), (2742, 7662), (3831, 5484), (4113, 5108)]