21185151

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{13249}}^1$

素因数の和:13306

約数の個数: 16

約数和(自身を含む): 31164000

約数和(自身を除く): 9978849

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 13249, 39747, 172237, 516711, 543209, 1629627, 7061717, 21185151]

約数ペア:

[(1, 21185151), (3, 7061717), (13, 1629627), (39, 543209), (41, 516711), (123, 172237), (533, 39747), (1599, 13249)]