18897039

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15787}}^1$

素因数の和:15819

約数の個数: 24

約数和(自身を含む): 32839040

約数和(自身を除く): 13942001

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 15787, 47361, 110509, 142083, 299953, 331527, 899859, 994581, 2099671, 2699577, 6299013, 18897039]

約数ペア:

[(1, 18897039), (3, 6299013), (7, 2699577), (9, 2099671), (19, 994581), (21, 899859), (57, 331527), (63, 299953), (133, 142083), (171, 110509), (399, 47361), (1197, 15787)]