21230188

素因数分解:

$2^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1801}}^1$

素因数の和:2233

約数の個数: 24

約数和(自身を含む): 42584864

約数和(自身を除く): 21354676

約数列:

[1, 2, 4, 7, 14, 28, 421, 842, 1684, 1801, 2947, 3602, 5894, 7204, 11788, 12607, 25214, 50428, 758221, 1516442, 3032884, 5307547, 10615094, 21230188]

約数ペア:

[(1, 21230188), (2, 10615094), (4, 5307547), (7, 3032884), (14, 1516442), (28, 758221), (421, 50428), (842, 25214), (1684, 12607), (1801, 11788), (2947, 7204), (3602, 5894)]