21561141

素因数分解:

$3^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{4523}}^1$

素因数の和:4760

約数の個数: 16

約数和(自身を含む): 33007104

約数和(自身を除く): 11445963

約数列:

[1, 3, 7, 21, 227, 681, 1589, 4523, 4767, 13569, 31661, 94983, 1026721, 3080163, 7187047, 21561141]

約数ペア:

[(1, 21561141), (3, 7187047), (7, 3080163), (21, 1026721), (227, 94983), (681, 31661), (1589, 13569), (4523, 4767)]