2783281221

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{31489}}^1$

素因数の和:31586

約数の個数: 48

約数和(自身を含む): 4873140480

約数和(自身を除く): 2089859259

約数列:

[1, 3, 7, 9, 21, 23, 61, 63, 69, 161, 183, 207, 427, 483, 549, 1281, 1403, 1449, 3843, 4209, 9821, 12627, 29463, 31489, 88389, 94467, 220423, 283401, 661269, 724247, 1920829, 1983807, 2172741, 5069729, 5762487, 6518223, 13445803, 15209187, 17287461, 40337409, 44179067, 45627561, 121012227, 132537201, 309253469, 397611603, 927760407, 2783281221]

約数ペア:

[(1, 2783281221), (3, 927760407), (7, 397611603), (9, 309253469), (21, 132537201), (23, 121012227), (61, 45627561), (63, 44179067), (69, 40337409), (161, 17287461), (183, 15209187), (207, 13445803), (427, 6518223), (483, 5762487), (549, 5069729), (1281, 2172741), (1403, 1983807), (1449, 1920829), (3843, 724247), (4209, 661269), (9821, 283401), (12627, 220423), (29463, 94467), (31489, 88389)]