19404231

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{503}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 13109817

約数列:

[1, 3, 7, 11, 21, 33, 77, 167, 231, 501, 503, 1169, 1509, 1837, 3507, 3521, 5511, 5533, 10563, 12859, 16599, 38577, 38731, 84001, 116193, 252003, 588007, 924011, 1764021, 2772033, 6468077, 19404231]

約数ペア:

[(1, 19404231), (3, 6468077), (7, 2772033), (11, 1764021), (21, 924011), (33, 588007), (77, 252003), (167, 116193), (231, 84001), (501, 38731), (503, 38577), (1169, 16599), (1509, 12859), (1837, 10563), (3507, 5533), (3521, 5511)]