18578709

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 27945632

約数和(自身を除く): 9366923

約数列:

[1, 3, 9, 43, 61, 129, 183, 387, 549, 787, 2361, 2623, 7083, 7869, 23607, 33841, 48007, 101523, 144021, 304569, 432063, 2064301, 6192903, 18578709]

約数ペア:

[(1, 18578709), (3, 6192903), (9, 2064301), (43, 432063), (61, 304569), (129, 144021), (183, 101523), (387, 48007), (549, 33841), (787, 23607), (2361, 7869), (2623, 7083)]