18530757

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 32722560

約数和(自身を除く): 14191803

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 113, 133, 137, 171, 339, 399, 411, 791, 959, 1017, 1197, 1233, 2147, 2373, 2603, 2877, 6441, 7119, 7809, 8631, 15029, 15481, 18221, 19323, 23427, 45087, 46443, 54663, 108367, 135261, 139329, 163989, 294139, 325101, 882417, 975303, 2058973, 2647251, 6176919, 18530757]

約数ペア:

[(1, 18530757), (3, 6176919), (7, 2647251), (9, 2058973), (19, 975303), (21, 882417), (57, 325101), (63, 294139), (113, 163989), (133, 139329), (137, 135261), (171, 108367), (339, 54663), (399, 46443), (411, 45087), (791, 23427), (959, 19323), (1017, 18221), (1197, 15481), (1233, 15029), (2147, 8631), (2373, 7809), (2603, 7119), (2877, 6441)]