18988294

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 32405184

約数和(自身を除く): 13416890

約数列:

[1, 2, 13, 23, 26, 46, 113, 226, 281, 299, 562, 598, 1469, 2599, 2938, 3653, 5198, 6463, 7306, 12926, 31753, 33787, 63506, 67574, 84019, 168038, 412789, 730319, 825578, 1460638, 9494147, 18988294]

約数ペア:

[(1, 18988294), (2, 9494147), (13, 1460638), (23, 825578), (26, 730319), (46, 412789), (113, 168038), (226, 84019), (281, 67574), (299, 63506), (562, 33787), (598, 31753), (1469, 12926), (2599, 7306), (2938, 6463), (3653, 5198)]