28973763

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2081}}^1$

素因数の和:2124

約数の個数: 48

約数和(自身を含む): 54565056

約数和(自身を除く): 25591293

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1547, 1989, 2081, 4641, 6243, 13923, 14567, 18729, 27053, 35377, 43701, 81159, 106131, 131103, 189371, 243477, 247639, 318393, 459901, 568113, 742917, 1379703, 1704339, 2228751, 3219307, 4139109, 9657921, 28973763]

約数ペア:

[(1, 28973763), (3, 9657921), (7, 4139109), (9, 3219307), (13, 2228751), (17, 1704339), (21, 1379703), (39, 742917), (51, 568113), (63, 459901), (91, 318393), (117, 247639), (119, 243477), (153, 189371), (221, 131103), (273, 106131), (357, 81159), (663, 43701), (819, 35377), (1071, 27053), (1547, 18729), (1989, 14567), (2081, 13923), (4641, 6243)]