19278921

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{751}}^1$

素因数の和:996

約数の個数: 16

約数和(自身を含む): 26470400

約数和(自身を除く): 7191479

約数列:

[1, 3, 43, 129, 199, 597, 751, 2253, 8557, 25671, 32293, 96879, 149449, 448347, 6426307, 19278921]

約数ペア:

[(1, 19278921), (3, 6426307), (43, 448347), (129, 149449), (199, 96879), (597, 32293), (751, 25671), (2253, 8557)]