21112553

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14431}}^1$

素因数の和:14468

約数の個数: 16

約数和(自身を含む): 27709440

約数和(自身を除く): 6596887

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14431, 101017, 158741, 274189, 1111187, 1919323, 3016079, 21112553]

約数ペア:

[(1, 21112553), (7, 3016079), (11, 1919323), (19, 1111187), (77, 274189), (133, 158741), (209, 101017), (1463, 14431)]