19863921

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{85991}}^1$

素因数の和:86012

約数の個数: 16

約数和(自身を含む): 33020928

約数和(自身を除く): 13157007

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 85991, 257973, 601937, 945901, 1805811, 2837703, 6621307, 19863921]

約数ペア:

[(1, 19863921), (3, 6621307), (7, 2837703), (11, 1805811), (21, 945901), (33, 601937), (77, 257973), (231, 85991)]