19980226

素因数分解:

$2^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{3559}}^1$

素因数の和:3969

約数の個数: 16

約数和(自身を含む): 34346880

約数和(自身を除く): 14366654

約数列:

[1, 2, 7, 14, 401, 802, 2807, 3559, 5614, 7118, 24913, 49826, 1427159, 2854318, 9990113, 19980226]

約数ペア:

[(1, 19980226), (2, 9990113), (7, 2854318), (14, 1427159), (401, 49826), (802, 24913), (2807, 7118), (3559, 5614)]