21057128

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{56003}}^1$

素因数の和:56056

約数の個数: 16

約数和(自身を含む): 40322880

約数和(自身を除く): 19265752

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 56003, 112006, 224012, 448024, 2632141, 5264282, 10528564, 21057128]

約数ペア:

[(1, 21057128), (2, 10528564), (4, 5264282), (8, 2632141), (47, 448024), (94, 224012), (188, 112006), (376, 56003)]