18217863

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 30191616

約数和(自身を除く): 11973753

約数列:

[1, 3, 9, 17, 23, 31, 51, 69, 93, 153, 167, 207, 279, 391, 501, 527, 713, 1173, 1503, 1581, 2139, 2839, 3519, 3841, 4743, 5177, 6417, 8517, 11523, 12121, 15531, 25551, 34569, 36363, 46593, 65297, 88009, 109089, 119071, 195891, 264027, 357213, 587673, 792081, 1071639, 2024207, 6072621, 18217863]

約数ペア:

[(1, 18217863), (3, 6072621), (9, 2024207), (17, 1071639), (23, 792081), (31, 587673), (51, 357213), (69, 264027), (93, 195891), (153, 119071), (167, 109089), (207, 88009), (279, 65297), (391, 46593), (501, 36363), (527, 34569), (713, 25551), (1173, 15531), (1503, 12121), (1581, 11523), (2139, 8517), (2839, 6417), (3519, 5177), (3841, 4743)]