20579139

素因数分解:

$3^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1439}}^1$

素因数の和:1679

約数の個数: 24

約数和(自身を含む): 34145280

約数和(自身を除く): 13566141

約数列:

[1, 3, 7, 9, 21, 63, 227, 681, 1439, 1589, 2043, 4317, 4767, 10073, 12951, 14301, 30219, 90657, 326653, 979959, 2286571, 2939877, 6859713, 20579139]

約数ペア:

[(1, 20579139), (3, 6859713), (7, 2939877), (9, 2286571), (21, 979959), (63, 326653), (227, 90657), (681, 30219), (1439, 14301), (1589, 12951), (2043, 10073), (4317, 4767)]