21491460921

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{11498909}}^1$

素因数の和:11499008

約数の個数: 16

約数和(自身を含む): 33116860800

約数和(自身を除く): 11625399879

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 11498909, 34496727, 80492363, 241477089, 1023402901, 3070208703, 7163820307, 21491460921]

約数ペア:

[(1, 21491460921), (3, 7163820307), (7, 3070208703), (21, 1023402901), (89, 241477089), (267, 80492363), (623, 34496727), (1869, 11498909)]