21353385

素因数分解:

$3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{4637}}^1$

素因数の和:4952

約数の個数: 16

約数和(自身を含む): 34284096

約数和(自身を除く): 12930711

約数列:

[1, 3, 5, 15, 307, 921, 1535, 4605, 4637, 13911, 23185, 69555, 1423559, 4270677, 7117795, 21353385]

約数ペア:

[(1, 21353385), (3, 7117795), (5, 4270677), (15, 1423559), (307, 69555), (921, 23185), (1535, 13911), (4605, 4637)]