21308514

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{208907}}^1$

素因数の和:208929

約数の個数: 16

約数和(自身を含む): 45124128

約数和(自身を除く): 23815614

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 208907, 417814, 626721, 1253442, 3551419, 7102838, 10654257, 21308514]

約数ペア:

[(1, 21308514), (2, 10654257), (3, 7102838), (6, 3551419), (17, 1253442), (34, 626721), (51, 417814), (102, 208907)]