19621821

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{2381}}^1$

素因数の和:2492

約数の個数: 16

約数和(自身を含む): 27211968

約数和(自身を除く): 7590147

約数列:

[1, 3, 41, 67, 123, 201, 2381, 2747, 7143, 8241, 97621, 159527, 292863, 478581, 6540607, 19621821]

約数ペア:

[(1, 19621821), (3, 6540607), (41, 478581), (67, 292863), (123, 159527), (201, 97621), (2381, 8241), (2747, 7143)]