21801246

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{199}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 47664000

約数和(自身を除く): 25862754

約数列:

[1, 2, 3, 6, 19, 31, 38, 57, 62, 93, 114, 186, 199, 398, 589, 597, 961, 1178, 1194, 1767, 1922, 2883, 3534, 3781, 5766, 6169, 7562, 11343, 12338, 18259, 18507, 22686, 36518, 37014, 54777, 109554, 117211, 191239, 234422, 351633, 382478, 573717, 703266, 1147434, 3633541, 7267082, 10900623, 21801246]

約数ペア:

[(1, 21801246), (2, 10900623), (3, 7267082), (6, 3633541), (19, 1147434), (31, 703266), (38, 573717), (57, 382478), (62, 351633), (93, 234422), (114, 191239), (186, 117211), (199, 109554), (398, 54777), (589, 37014), (597, 36518), (961, 22686), (1178, 18507), (1194, 18259), (1767, 12338), (1922, 11343), (2883, 7562), (3534, 6169), (3781, 5766)]