21604338

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{619}}^1$

素因数の和:911

約数の個数: 48

約数和(自身を含む): 53776320

約数和(自身を除く): 32171982

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 277, 554, 619, 831, 1238, 1662, 1857, 1939, 2493, 3714, 3878, 4333, 4986, 5571, 5817, 8666, 11142, 11634, 12999, 17451, 25998, 34902, 38997, 77994, 171463, 342926, 514389, 1028778, 1200241, 1543167, 2400482, 3086334, 3600723, 7201446, 10802169, 21604338]

約数ペア:

[(1, 21604338), (2, 10802169), (3, 7201446), (6, 3600723), (7, 3086334), (9, 2400482), (14, 1543167), (18, 1200241), (21, 1028778), (42, 514389), (63, 342926), (126, 171463), (277, 77994), (554, 38997), (619, 34902), (831, 25998), (1238, 17451), (1662, 12999), (1857, 11634), (1939, 11142), (2493, 8666), (3714, 5817), (3878, 5571), (4333, 4986)]