21711998

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1831}}^1$

素因数の和:1869

約数の個数: 36

約数和(自身を含む): 41665176

約数和(自身を除く): 19953178

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 121, 154, 242, 539, 847, 1078, 1694, 1831, 3662, 5929, 11858, 12817, 20141, 25634, 40282, 89719, 140987, 179438, 221551, 281974, 443102, 986909, 1550857, 1973818, 3101714, 10855999, 21711998]

約数ペア:

[(1, 21711998), (2, 10855999), (7, 3101714), (11, 1973818), (14, 1550857), (22, 986909), (49, 443102), (77, 281974), (98, 221551), (121, 179438), (154, 140987), (242, 89719), (539, 40282), (847, 25634), (1078, 20141), (1694, 12817), (1831, 11858), (3662, 5929)]