20646402

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{491581}}^1$

素因数の和:491593

約数の個数: 16

約数和(自身を含む): 47191872

約数和(自身を除く): 26545470

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 491581, 983162, 1474743, 2949486, 3441067, 6882134, 10323201, 20646402]

約数ペア:

[(1, 20646402), (2, 10323201), (3, 6882134), (6, 3441067), (7, 2949486), (14, 1474743), (21, 983162), (42, 491581)]