21069993

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{52807}}^1$

素因数の和:52836

約数の個数: 16

約数和(自身を含む): 33797120

約数和(自身を除く): 12727127

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 52807, 158421, 369649, 1003333, 1108947, 3009999, 7023331, 21069993]

約数ペア:

[(1, 21069993), (3, 7023331), (7, 3009999), (19, 1108947), (21, 1003333), (57, 369649), (133, 158421), (399, 52807)]