20686478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{14713}}^1$

素因数の和:14771

約数の個数: 16

約数和(自身を含む): 33547920

約数和(自身を除く): 12861442

約数列:

[1, 2, 19, 37, 38, 74, 703, 1406, 14713, 29426, 279547, 544381, 559094, 1088762, 10343239, 20686478]

約数ペア:

[(1, 20686478), (2, 10343239), (19, 1088762), (37, 559094), (38, 544381), (74, 279547), (703, 29426), (1406, 14713)]