61987899

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 95489280

約数和(自身を除く): 33501381

約数列:

[1, 3, 17, 19, 51, 53, 57, 71, 159, 213, 289, 323, 867, 901, 969, 1007, 1207, 1349, 2703, 3021, 3621, 3763, 4047, 5491, 11289, 15317, 16473, 17119, 20519, 22933, 45951, 51357, 61557, 63971, 68799, 71497, 191913, 214491, 291023, 389861, 873069, 1087507, 1169583, 1215449, 3262521, 3646347, 20662633, 61987899]

約数ペア:

[(1, 61987899), (3, 20662633), (17, 3646347), (19, 3262521), (51, 1215449), (53, 1169583), (57, 1087507), (71, 873069), (159, 389861), (213, 291023), (289, 214491), (323, 191913), (867, 71497), (901, 68799), (969, 63971), (1007, 61557), (1207, 51357), (1349, 45951), (2703, 22933), (3021, 20519), (3621, 17119), (3763, 16473), (4047, 15317), (5491, 11289)]