21890084

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{3617}}^1$

素因数の和:3727

約数の個数: 24

約数和(自身を含む): 41028120

約数和(自身を除く): 19138036

約数列:

[1, 2, 4, 17, 34, 68, 89, 178, 356, 1513, 3026, 3617, 6052, 7234, 14468, 61489, 122978, 245956, 321913, 643826, 1287652, 5472521, 10945042, 21890084]

約数ペア:

[(1, 21890084), (2, 10945042), (4, 5472521), (17, 1287652), (34, 643826), (68, 321913), (89, 245956), (178, 122978), (356, 61489), (1513, 14468), (3026, 7234), (3617, 6052)]