20464353

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8329}}^1$

素因数の和:8358

約数の個数: 32

約数和(自身を含む): 37318400

約数和(自身を除く): 16854047

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8329, 24987, 58303, 74961, 108277, 174909, 224883, 324831, 524727, 757939, 974493, 1574181, 2273817, 2923479, 6821451, 20464353]

約数ペア:

[(1, 20464353), (3, 6821451), (7, 2923479), (9, 2273817), (13, 1574181), (21, 974493), (27, 757939), (39, 524727), (63, 324831), (91, 224883), (117, 174909), (189, 108277), (273, 74961), (351, 58303), (819, 24987), (2457, 8329)]