2553201

素因数分解:

$3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 4659200

約数和(自身を除く): 2105999

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 79, 81, 133, 171, 189, 237, 243, 399, 513, 553, 567, 711, 1197, 1501, 1539, 1659, 1701, 2133, 3591, 4503, 4617, 4977, 6399, 10507, 10773, 13509, 14931, 19197, 31521, 32319, 40527, 44793, 94563, 121581, 134379, 283689, 364743, 851067, 2553201]

約数ペア:

[(1, 2553201), (3, 851067), (7, 364743), (9, 283689), (19, 134379), (21, 121581), (27, 94563), (57, 44793), (63, 40527), (79, 32319), (81, 31521), (133, 19197), (171, 14931), (189, 13509), (237, 10773), (243, 10507), (399, 6399), (513, 4977), (553, 4617), (567, 4503), (711, 3591), (1197, 2133), (1501, 1701), (1539, 1659)]