18879327

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:443

約数の個数: 24

約数和(自身を含む): 28005120

約数和(自身を除く): 9125793

約数列:

[1, 3, 9, 67, 131, 201, 239, 393, 603, 717, 1179, 2151, 8777, 16013, 26331, 31309, 48039, 78993, 93927, 144117, 281781, 2097703, 6293109, 18879327]

約数ペア:

[(1, 18879327), (3, 6293109), (9, 2097703), (67, 281781), (131, 144117), (201, 93927), (239, 78993), (393, 48039), (603, 31309), (717, 26331), (1179, 16013), (2151, 8777)]