21900865

素因数分解:

$5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{2309}}^1$

素因数の和:2592

約数の個数: 16

約数和(自身を含む): 30159360

約数和(自身を除く): 8258495

約数列:

[1, 5, 7, 35, 271, 1355, 1897, 2309, 9485, 11545, 16163, 80815, 625739, 3128695, 4380173, 21900865]

約数ペア:

[(1, 21900865), (5, 4380173), (7, 3128695), (35, 625739), (271, 80815), (1355, 16163), (1897, 11545), (2309, 9485)]