20125431

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:467

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 9751689

約数列:

[1, 3, 9, 59, 151, 177, 251, 453, 531, 753, 1359, 2259, 8909, 14809, 26727, 37901, 44427, 80181, 113703, 133281, 341109, 2236159, 6708477, 20125431]

約数ペア:

[(1, 20125431), (3, 6708477), (9, 2236159), (59, 341109), (151, 133281), (177, 113703), (251, 80181), (453, 44427), (531, 37901), (753, 26727), (1359, 14809), (2259, 8909)]