21351885

素因数分解:

$3^1\times 5^1\times {\mathrm{577}}^1\times {\mathrm{2467}}^1$

素因数の和:3052

約数の個数: 16

約数和(自身を含む): 34236096

約数和(自身を除く): 12884211

約数列:

[1, 3, 5, 15, 577, 1731, 2467, 2885, 7401, 8655, 12335, 37005, 1423459, 4270377, 7117295, 21351885]

約数ペア:

[(1, 21351885), (3, 7117295), (5, 4270377), (15, 1423459), (577, 37005), (1731, 12335), (2467, 8655), (2885, 7401)]