21958431

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{653}}^1\times {\mathrm{1019}}^1$

素因数の和:1686

約数の個数: 16

約数和(自身を含む): 32019840

約数和(自身を除く): 10061409

約数列:

[1, 3, 11, 33, 653, 1019, 1959, 3057, 7183, 11209, 21549, 33627, 665407, 1996221, 7319477, 21958431]

約数ペア:

[(1, 21958431), (3, 7319477), (11, 1996221), (33, 665407), (653, 33627), (1019, 21549), (1959, 11209), (3057, 7183)]