21344265

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27901}}^1$

素因数の和:27929

約数の個数: 24

約数和(自身を含む): 39174408

約数和(自身を除く): 17830143

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 27901, 83703, 139505, 251109, 418515, 474317, 1255545, 1422951, 2371585, 4268853, 7114755, 21344265]

約数ペア:

[(1, 21344265), (3, 7114755), (5, 4268853), (9, 2371585), (15, 1422951), (17, 1255545), (45, 474317), (51, 418515), (85, 251109), (153, 139505), (255, 83703), (765, 27901)]