21706151

素因数分解:

${\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:398

約数の個数: 16

約数和(自身を含む): 23654400

約数和(自身を除く): 1948249

約数列:

[1, 19, 47, 109, 223, 893, 2071, 4237, 5123, 10481, 24307, 97337, 199139, 461833, 1142429, 21706151]

約数ペア:

[(1, 21706151), (19, 1142429), (47, 461833), (109, 199139), (223, 97337), (893, 24307), (2071, 10481), (4237, 5123)]