21854265

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{85703}}^1$

素因数の和:85728

約数の個数: 16

約数和(自身を含む): 37024128

約数和(自身を除く): 15169863

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 85703, 257109, 428515, 1285545, 1456951, 4370853, 7284755, 21854265]

約数ペア:

[(1, 21854265), (3, 7284755), (5, 4370853), (15, 1456951), (17, 1285545), (51, 428515), (85, 257109), (255, 85703)]