31839759

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 58900608

約数和(自身を除く): 27060849

約数列:

[1, 3, 7, 9, 17, 21, 31, 49, 51, 63, 93, 119, 137, 147, 153, 217, 279, 357, 411, 441, 527, 651, 833, 959, 1071, 1233, 1519, 1581, 1953, 2329, 2499, 2877, 3689, 4247, 4557, 4743, 6713, 6987, 7497, 8631, 11067, 12741, 13671, 16303, 20139, 20961, 25823, 29729, 33201, 38223, 48909, 60417, 72199, 77469, 89187, 114121, 146727, 208103, 216597, 232407, 267561, 342363, 505393, 624309, 649791, 1027089, 1516179, 1872927, 3537751, 4548537, 10613253, 31839759]

約数ペア:

[(1, 31839759), (3, 10613253), (7, 4548537), (9, 3537751), (17, 1872927), (21, 1516179), (31, 1027089), (49, 649791), (51, 624309), (63, 505393), (93, 342363), (119, 267561), (137, 232407), (147, 216597), (153, 208103), (217, 146727), (279, 114121), (357, 89187), (411, 77469), (441, 72199), (527, 60417), (651, 48909), (833, 38223), (959, 33201), (1071, 29729), (1233, 25823), (1519, 20961), (1581, 20139), (1953, 16303), (2329, 13671), (2499, 12741), (2877, 11067), (3689, 8631), (4247, 7497), (4557, 6987), (4743, 6713)]