20080281

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1041

約数の個数: 32

約数和(自身を含む): 31546368

約数和(自身を除く): 11466087

約数列:

[1, 3, 13, 17, 31, 39, 51, 93, 221, 403, 527, 663, 977, 1209, 1581, 2931, 6851, 12701, 16609, 20553, 30287, 38103, 49827, 90861, 215917, 393731, 514879, 647751, 1181193, 1544637, 6693427, 20080281]

約数ペア:

[(1, 20080281), (3, 6693427), (13, 1544637), (17, 1181193), (31, 647751), (39, 514879), (51, 393731), (93, 215917), (221, 90861), (403, 49827), (527, 38103), (663, 30287), (977, 20553), (1209, 16609), (1581, 12701), (2931, 6851)]