405280407

素因数分解:

$3^1\times 7^1\times {\mathrm{2027}}^1\times {\mathrm{9521}}^1$

素因数の和:11558

約数の個数: 16

約数和(自身を含む): 617939712

約数和(自身を除く): 212659305

約数列:

[1, 3, 7, 21, 2027, 6081, 9521, 14189, 28563, 42567, 66647, 199941, 19299067, 57897201, 135093469, 405280407]

約数ペア:

[(1, 405280407), (3, 135093469), (7, 57897201), (21, 19299067), (2027, 199941), (6081, 66647), (9521, 42567), (14189, 28563)]