398183709

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{12401}}^1$

素因数の和:12561

約数の個数: 32

約数和(自身を含む): 666731520

約数和(自身を除く): 268547811

約数列:

[1, 3, 7, 11, 21, 33, 77, 139, 231, 417, 973, 1529, 2919, 4587, 10703, 12401, 32109, 37203, 86807, 136411, 260421, 409233, 954877, 1723739, 2864631, 5171217, 12066173, 18961129, 36198519, 56883387, 132727903, 398183709]

約数ペア:

[(1, 398183709), (3, 132727903), (7, 56883387), (11, 36198519), (21, 18961129), (33, 12066173), (77, 5171217), (139, 2864631), (231, 1723739), (417, 954877), (973, 409233), (1529, 260421), (2919, 136411), (4587, 86807), (10703, 37203), (12401, 32109)]