21134309

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{881}}^1$

素因数の和:1060

約数の個数: 16

約数和(自身を含む): 25401600

約数和(自身を除く): 4267291

約数列:

[1, 7, 23, 149, 161, 881, 1043, 3427, 6167, 20263, 23989, 131269, 141841, 918883, 3019187, 21134309]

約数ペア:

[(1, 21134309), (7, 3019187), (23, 918883), (149, 141841), (161, 131269), (881, 23989), (1043, 20263), (3427, 6167)]