20898268

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{1249}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 37800000

約数和(自身を除く): 16901732

約数列:

[1, 2, 4, 47, 89, 94, 178, 188, 356, 1249, 2498, 4183, 4996, 8366, 16732, 58703, 111161, 117406, 222322, 234812, 444644, 5224567, 10449134, 20898268]

約数ペア:

[(1, 20898268), (2, 10449134), (4, 5224567), (47, 444644), (89, 234812), (94, 222322), (178, 117406), (188, 111161), (356, 58703), (1249, 16732), (2498, 8366), (4183, 4996)]