18558639

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 31135104

約数和(自身を除く): 12576465

約数列:

[1, 3, 9, 11, 27, 33, 53, 81, 99, 131, 159, 243, 297, 393, 477, 583, 891, 1179, 1431, 1441, 1749, 2673, 3537, 4293, 4323, 5247, 6943, 10611, 12879, 12969, 15741, 20829, 31833, 38907, 47223, 62487, 76373, 116721, 141669, 187461, 229119, 350163, 562383, 687357, 1687149, 2062071, 6186213, 18558639]

約数ペア:

[(1, 18558639), (3, 6186213), (9, 2062071), (11, 1687149), (27, 687357), (33, 562383), (53, 350163), (81, 229119), (99, 187461), (131, 141669), (159, 116721), (243, 76373), (297, 62487), (393, 47223), (477, 38907), (583, 31833), (891, 20829), (1179, 15741), (1431, 12969), (1441, 12879), (1749, 10611), (2673, 6943), (3537, 5247), (4293, 4323)]