18851623

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 32

約数和(自身を含む): 24105600

約数和(自身を除く): 5253977

約数列:

[1, 7, 17, 49, 53, 61, 119, 343, 371, 427, 833, 901, 1037, 2597, 2989, 3233, 5831, 6307, 7259, 18179, 20923, 22631, 44149, 50813, 54961, 158417, 309043, 355691, 384727, 1108919, 2693089, 18851623]

約数ペア:

[(1, 18851623), (7, 2693089), (17, 1108919), (49, 384727), (53, 355691), (61, 309043), (119, 158417), (343, 54961), (371, 50813), (427, 44149), (833, 22631), (901, 20923), (1037, 18179), (2597, 7259), (2989, 6307), (3233, 5831)]