64781343

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 107251200

約数和(自身を除く): 42469857

約数列:

[1, 3, 9, 11, 27, 33, 79, 99, 121, 237, 251, 297, 363, 711, 753, 869, 1089, 2133, 2259, 2607, 2761, 3267, 6777, 7821, 8283, 9559, 19829, 23463, 24849, 28677, 30371, 59487, 74547, 86031, 91113, 178461, 218119, 258093, 273339, 535383, 654357, 820017, 1963071, 2399309, 5889213, 7197927, 21593781, 64781343]

約数ペア:

[(1, 64781343), (3, 21593781), (9, 7197927), (11, 5889213), (27, 2399309), (33, 1963071), (79, 820017), (99, 654357), (121, 535383), (237, 273339), (251, 258093), (297, 218119), (363, 178461), (711, 91113), (753, 86031), (869, 74547), (1089, 59487), (2133, 30371), (2259, 28677), (2607, 24849), (2761, 23463), (3267, 19829), (6777, 9559), (7821, 8283)]