18393881

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 23224320

約数和(自身を除く): 4830439

約数列:

[1, 11, 17, 19, 31, 167, 187, 209, 323, 341, 527, 589, 1837, 2839, 3173, 3553, 5177, 5797, 6479, 10013, 31229, 34903, 53941, 56947, 88009, 98363, 110143, 593351, 968099, 1081993, 1672171, 18393881]

約数ペア:

[(1, 18393881), (11, 1672171), (17, 1081993), (19, 968099), (31, 593351), (167, 110143), (187, 98363), (209, 88009), (323, 56947), (341, 53941), (527, 34903), (589, 31229), (1837, 10013), (2839, 6479), (3173, 5797), (3553, 5177)]