21701265

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{85103}}^1$

素因数の和:85128

約数の個数: 16

約数和(自身を含む): 36764928

約数和(自身を除く): 15063663

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 85103, 255309, 425515, 1276545, 1446751, 4340253, 7233755, 21701265]

約数ペア:

[(1, 21701265), (3, 7233755), (5, 4340253), (15, 1446751), (17, 1276545), (51, 425515), (85, 255309), (255, 85103)]