2021067921

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{208379}}^1$

素因数の和:208496

約数の個数: 16

約数和(自身を含む): 2790624960

約数和(自身を除く): 769557039

約数列:

[1, 3, 53, 61, 159, 183, 3233, 9699, 208379, 625137, 11044087, 12711119, 33132261, 38133357, 673689307, 2021067921]

約数ペア:

[(1, 2021067921), (3, 673689307), (53, 38133357), (61, 33132261), (159, 12711119), (183, 11044087), (3233, 625137), (9699, 208379)]