28260603

素因数分解:

$3^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{521}}^1$

素因数の和:585

約数の個数: 48

約数和(自身を含む): 49986720

約数和(自身を除く): 21726117

約数列:

[1, 3, 7, 9, 21, 27, 41, 49, 63, 123, 147, 189, 287, 369, 441, 521, 861, 1107, 1323, 1563, 2009, 2583, 3647, 4689, 6027, 7749, 10941, 14067, 18081, 21361, 25529, 32823, 54243, 64083, 76587, 98469, 149527, 192249, 229761, 448581, 576747, 689283, 1046689, 1345743, 3140067, 4037229, 9420201, 28260603]

約数ペア:

[(1, 28260603), (3, 9420201), (7, 4037229), (9, 3140067), (21, 1345743), (27, 1046689), (41, 689283), (49, 576747), (63, 448581), (123, 229761), (147, 192249), (189, 149527), (287, 98469), (369, 76587), (441, 64083), (521, 54243), (861, 32823), (1107, 25529), (1323, 21361), (1563, 18081), (2009, 14067), (2583, 10941), (3647, 7749), (4689, 6027)]