18556972

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21379}}^1$

素因数の和:21421

約数の個数: 24

約数和(自身を含む): 38312960

約数和(自身を除く): 19755988

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21379, 42758, 85516, 149653, 299306, 598612, 662749, 1325498, 2650996, 4639243, 9278486, 18556972]

約数ペア:

[(1, 18556972), (2, 9278486), (4, 4639243), (7, 2650996), (14, 1325498), (28, 662749), (31, 598612), (62, 299306), (124, 149653), (217, 85516), (434, 42758), (868, 21379)]