21000858

素因数分解:

$2^1\times 3^1\times {\mathrm{443}}^1\times {\mathrm{7901}}^1$

素因数の和:8349

約数の個数: 16

約数和(自身を含む): 42101856

約数和(自身を除く): 21100998

約数列:

[1, 2, 3, 6, 443, 886, 1329, 2658, 7901, 15802, 23703, 47406, 3500143, 7000286, 10500429, 21000858]

約数ペア:

[(1, 21000858), (2, 10500429), (3, 7000286), (6, 3500143), (443, 47406), (886, 23703), (1329, 15802), (2658, 7901)]