488936721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{26731}}^1$

素因数の和:26821

約数の個数: 32

約数和(自身を含む): 814363648

約数和(自身を除く): 325426927

約数列:

[1, 3, 7, 13, 21, 39, 67, 91, 201, 273, 469, 871, 1407, 2613, 6097, 18291, 26731, 80193, 187117, 347503, 561351, 1042509, 1790977, 2432521, 5372931, 7297563, 12536839, 23282701, 37610517, 69848103, 162978907, 488936721]

約数ペア:

[(1, 488936721), (3, 162978907), (7, 69848103), (13, 37610517), (21, 23282701), (39, 12536839), (67, 7297563), (91, 5372931), (201, 2432521), (273, 1790977), (469, 1042509), (871, 561351), (1407, 347503), (2613, 187117), (6097, 80193), (18291, 26731)]