21038353

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{877}}^1$

素因数の和:1056

約数の個数: 16

約数和(自身を含む): 25286400

約数和(自身を除く): 4248047

約数列:

[1, 7, 23, 149, 161, 877, 1043, 3427, 6139, 20171, 23989, 130673, 141197, 914711, 3005479, 21038353]

約数ペア:

[(1, 21038353), (7, 3005479), (23, 914711), (149, 141197), (161, 130673), (877, 23989), (1043, 20171), (3427, 6139)]