21247743

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{1487}}^1$

素因数の和:1934

約数の個数: 16

約数和(自身を含む): 30998016

約数和(自身を除く): 9750273

約数列:

[1, 3, 11, 33, 433, 1299, 1487, 4461, 4763, 14289, 16357, 49071, 643871, 1931613, 7082581, 21247743]

約数ペア:

[(1, 21247743), (3, 7082581), (11, 1931613), (33, 643871), (433, 49071), (1299, 16357), (1487, 14289), (4461, 4763)]