21367941

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6829}}^1$

素因数の和:6988

約数の個数: 16

約数和(自身を含む): 32784000

約数和(自身を除く): 11416059

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6829, 20487, 47803, 143409, 1017521, 3052563, 7122647, 21367941]

約数ペア:

[(1, 21367941), (3, 7122647), (7, 3052563), (21, 1017521), (149, 143409), (447, 47803), (1043, 20487), (3129, 6829)]