16989171

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 25141248

約数和(自身を除く): 8152077

約数列:

[1, 3, 17, 43, 51, 61, 127, 129, 183, 381, 731, 1037, 2159, 2193, 2623, 3111, 5461, 6477, 7747, 7869, 16383, 23241, 44591, 92837, 131699, 133773, 278511, 333121, 395097, 999363, 5663057, 16989171]

約数ペア:

[(1, 16989171), (3, 5663057), (17, 999363), (43, 395097), (51, 333121), (61, 278511), (127, 133773), (129, 131699), (183, 92837), (381, 44591), (731, 23241), (1037, 16383), (2159, 7869), (2193, 7747), (2623, 6477), (3111, 5461)]