18523988

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21341}}^1$

素因数の和:21383

約数の個数: 24

約数和(自身を含む): 38244864

約数和(自身を除く): 19720876

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21341, 42682, 85364, 149387, 298774, 597548, 661571, 1323142, 2646284, 4630997, 9261994, 18523988]

約数ペア:

[(1, 18523988), (2, 9261994), (4, 4630997), (7, 2646284), (14, 1323142), (28, 661571), (31, 597548), (62, 298774), (124, 149387), (217, 85364), (434, 42682), (868, 21341)]