28007469

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1549}}^1$

素因数の和:1610

約数の個数: 36

約数和(自身を含む): 48239100

約数和(自身を除く): 20231631

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 1549, 2009, 2583, 4647, 6027, 10843, 13941, 18081, 32529, 63509, 75901, 97587, 190527, 227703, 444563, 571581, 683109, 1333689, 3111941, 4001067, 9335823, 28007469]

約数ペア:

[(1, 28007469), (3, 9335823), (7, 4001067), (9, 3111941), (21, 1333689), (41, 683109), (49, 571581), (63, 444563), (123, 227703), (147, 190527), (287, 97587), (369, 75901), (441, 63509), (861, 32529), (1549, 18081), (2009, 13941), (2583, 10843), (4647, 6027)]