19836747

素因数分解:

$3^2\times 7^1\times {\mathrm{499}}^1\times {\mathrm{631}}^1$

素因数の和:1143

約数の個数: 24

約数和(自身を含む): 32864000

約数和(自身を除く): 13027253

約数列:

[1, 3, 7, 9, 21, 63, 499, 631, 1497, 1893, 3493, 4417, 4491, 5679, 10479, 13251, 31437, 39753, 314869, 944607, 2204083, 2833821, 6612249, 19836747]

約数ペア:

[(1, 19836747), (3, 6612249), (7, 2833821), (9, 2204083), (21, 944607), (63, 314869), (499, 39753), (631, 31437), (1497, 13251), (1893, 10479), (3493, 5679), (4417, 4491)]