21385635

素因数分解:

$3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2801}}^1$

素因数の和:3318

約数の個数: 16

約数和(自身を含む): 34296480

約数和(自身を除く): 12910845

約数列:

[1, 3, 5, 15, 509, 1527, 2545, 2801, 7635, 8403, 14005, 42015, 1425709, 4277127, 7128545, 21385635]

約数ペア:

[(1, 21385635), (3, 7128545), (5, 4277127), (15, 1425709), (509, 42015), (1527, 14005), (2545, 8403), (2801, 7635)]