221489061

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{487}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 318566400

約数和(自身を除く): 97077339

約数列:

[1, 3, 19, 57, 79, 101, 237, 303, 487, 1461, 1501, 1919, 4503, 5757, 7979, 9253, 23937, 27759, 38473, 49187, 115419, 147561, 151601, 454803, 730987, 934553, 2192961, 2803659, 3885773, 11657319, 73829687, 221489061]

約数ペア:

[(1, 221489061), (3, 73829687), (19, 11657319), (57, 3885773), (79, 2803659), (101, 2192961), (237, 934553), (303, 730987), (487, 454803), (1461, 151601), (1501, 147561), (1919, 115419), (4503, 49187), (5757, 38473), (7979, 27759), (9253, 23937)]