20406654

素因数分解:

$2^1\times 3^5\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 46300800

約数和(自身を除く): 25894146

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 199, 211, 243, 398, 422, 486, 597, 633, 1194, 1266, 1791, 1899, 3582, 3798, 5373, 5697, 10746, 11394, 16119, 17091, 32238, 34182, 41989, 48357, 51273, 83978, 96714, 102546, 125967, 251934, 377901, 755802, 1133703, 2267406, 3401109, 6802218, 10203327, 20406654]

約数ペア:

[(1, 20406654), (2, 10203327), (3, 6802218), (6, 3401109), (9, 2267406), (18, 1133703), (27, 755802), (54, 377901), (81, 251934), (162, 125967), (199, 102546), (211, 96714), (243, 83978), (398, 51273), (422, 48357), (486, 41989), (597, 34182), (633, 32238), (1194, 17091), (1266, 16119), (1791, 11394), (1899, 10746), (3582, 5697), (3798, 5373)]