28085211

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 55910400

約数和(自身を除く): 27825189

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 79, 81, 99, 133, 171, 189, 209, 231, 237, 243, 297, 399, 513, 553, 567, 627, 693, 711, 869, 891, 1197, 1463, 1501, 1539, 1659, 1701, 1881, 2079, 2133, 2607, 2673, 3591, 4389, 4503, 4617, 4977, 5643, 6083, 6237, 6399, 7821, 10507, 10773, 13167, 13509, 14931, 16511, 16929, 18249, 18711, 19197, 23463, 31521, 32319, 39501, 40527, 44793, 49533, 50787, 54747, 70389, 94563, 115577, 118503, 121581, 134379, 148599, 164241, 211167, 283689, 346731, 355509, 364743, 445797, 492723, 851067, 1040193, 1337391, 1478169, 2553201, 3120579, 4012173, 9361737, 28085211]

約数ペア:

[(1, 28085211), (3, 9361737), (7, 4012173), (9, 3120579), (11, 2553201), (19, 1478169), (21, 1337391), (27, 1040193), (33, 851067), (57, 492723), (63, 445797), (77, 364743), (79, 355509), (81, 346731), (99, 283689), (133, 211167), (171, 164241), (189, 148599), (209, 134379), (231, 121581), (237, 118503), (243, 115577), (297, 94563), (399, 70389), (513, 54747), (553, 50787), (567, 49533), (627, 44793), (693, 40527), (711, 39501), (869, 32319), (891, 31521), (1197, 23463), (1463, 19197), (1501, 18711), (1539, 18249), (1659, 16929), (1701, 16511), (1881, 14931), (2079, 13509), (2133, 13167), (2607, 10773), (2673, 10507), (3591, 7821), (4389, 6399), (4503, 6237), (4617, 6083), (4977, 5643)]